What does the Azure Language service enable?

Correct answer: Sentiment analysis, entity recognition, and key phrase extraction from text

Option B is correct because the Azure AI Language service (part of Azure Cognitive Services) provides natural language processing capabilities including sentiment analysis to determine emotional tone, named entity recognition, and key phrase extraction from unstructured text. Option A is incorrect because image recognition and facial detection are provided by the Azure AI Vision service and Azure AI Face service, not the Language service. Option C is incorrect because database query optimization is a function of database engines and tools such as Azure SQL Query Performance Insight, not the Language service. Option D is incorrect because real-time translation of spoken language is the domain of the Azure AI Speech service combined with the Translator service; the Language service focuses on text-based NLP tasks rather than live audio translation.