Which of the cognitive Service API would help in: 
-Scanning text to identify personal data 
-Using a custom list in-line with content policies to block or allow content. 

Answer options:

A.Computer Vision
B.Text Analytics
C.Text Protector
D.Content Moderator

Correct Answer: D
Option A is INCORRECT. Computer Vision service provides capabilities for image processing and capturing required associated information.
Option B is INCORRECT. Text Analytics cognitive service performs sentiment analysis, language detection and key phrase extraction over text by NLP.
Option C is INCORRECT. Text Protector is an invalid service.
Option D is CORRECT. Moderation API is included in the content moderator service and helps check materials content for potential inappropriateness or objectionability.
There are various types of moderation APIs including text moderation, custom terms list, image moderation, custom image list, Video moderation. 
References: 

https://docs.microsoft.com/en-us/azure/cognitive-services/computer-vision/
https://docs.microsoft.com/en-us/azure/cognitive-services/text-analytics/
https://docs.microsoft.com/en-us/azure/cognitive-services/content-moderator/overview