Marqueguard is a social media monitoring company headquartered in Brighton, England. Marqueguard sells three different products: Analytics, Audiences, and Insights. Marqueguard Analytics is a "self-serveapplication" or software as a service, which archives social media data in order to provide companies with information and the means to track specific segments to analyze their brands` online presence.
The tool`s coverage includes blogs, news sites, forums, videos, reviews, images and social networks such as Twitter and Facebook. Users can search data by using Text and Image Search, and use charting, categorization, sentiment analysis and other features to provide further information and analysis. Marqueguard has access to over 80 million sources.
Marqueguard wants provide Image and text analysis capabilities to the applications which includes identify objects, people, text, scenes, and activities and also also provides highly accurate facial analysis and facial recognition.
What service can provide this capability? select 1 option.

Answer options:

A.Amazon Comprehend
B.Amazon Rekognition
C.Amazon Polly
D.Amazon SageMaker

Answer : B
Option A is incorrect -Amazon Comprehend uses natural language processing (NLP) to extract insights about the content of documents. Amazon Comprehend processes any text file in UTF-8 format. It develops insights by recognizing the entities, key phrases, language, sentiments, and other common elements in a document. Use Amazon Comprehend to create new products based on understanding the structure of documents. For example, using Amazon Comprehend you can search social networking feeds for mentions of products or scan an entire document repository for key phrases. 
https://docs.aws.amazon.com/comprehend/latest/dg/what-is.html
Option B is correct - Amazon Rekognition makes it easy to add image and video analysis to your applications. You just provide an image or video to the Rekognition API, and the service can identify objects, people, text, scenes, and activities. It can detect any inappropriate content as well. Amazon Rekognition also provides highly accurate facial analysis and facial recognition. You can detect, analyze, and compare faces for a wide variety of use cases, including user verification, cataloging, people counting, and public safety. 
https://docs.aws.amazon.com/rekognition/latest/dg/what-is.html
Option C is incorrect -Amazon Polly is a cloud service that converts text into lifelike speech. You can use Amazon Polly to develop applications that increase engagement and accessibility. Amazon Polly supports multiple languages and includes a variety of lifelike voices, so you can build speech-enabled applications that work in multiple locations and use the ideal voice for your customers. With Amazon Polly, you only pay for the text you synthesize. You can also cache and replay Amazon Polly’s generated speech at no additional cost. 
https://docs.aws.amazon.com/polly/latest/dg/what-is.html
Option D is incorrect -Amazon SageMaker is a fully managed machine learning service. With Amazon SageMaker, data scientists and developers can quickly and easily build and train machine learning models, and then directly deploy them into a production-readyhosted environment. It provides an integrated Jupyter authoring notebook instance for easy access to your data sources for exploration and analysis, so you don`t have to manage servers. It also provides common machine learning algorithms that are optimized to run efficiently against extremely large data in a distributed environment 
https://docs.aws.amazon.com/sagemaker/latest/dg/whatis.html