Correct Answer: C
Option A is incorrect. Vertex AI helps build, deploy and scale ML models faster within a unified AI platform.
Option B is incorrect. Cloud Translation helps build multilingual applications with the help of machine translation.
Option C is correct. Natural Language AI is a Google Cloud AI product that helps classify unstructured text and performs sentiment analysis.
Option D is incorrect. Dialogflow helps build conversational applications.
https://cloud.google.com/vertex-ai
https://cloud.google.com/translate
https://cloud.google.com/natural-language
https://cloud.google.com/dialogflow