What service does AWS provide for performing natural language processing (NLP)?

Amazon Comprehend is the correct service for performing natural language processing (NLP) on AWS. It is a fully managed service that uses machine learning to find insights and relationships in text. With Amazon Comprehend, users can perform various NLP tasks, such as sentiment analysis, entity recognition, key phrase extraction, language detection, and topic modeling. This service allows developers and businesses to process and analyze large volumes of unstructured text easily, extracting valuable information without requiring extensive machine learning expertise.

Other services mentioned in the choices serve different purposes. For instance, Amazon Translate is focused on language translation rather than NLP tasks. AWS Lambda is a serverless compute service that executes code in response to events and is not specific to NLP. Amazon Lex is designed for building conversational interfaces and chatbots and incorporates some NLP capabilities, but its primary function is not dedicated to comprehensive NLP tasks like understanding and analyzing text as Amazon Comprehend does.