Answer: Detecting objects, faces, and scenes in images and videos

Amazon Rekognition is an AWS service that uses deep learning technology to analyze images and videos. Its primary functions include: 1. **Object and scene detection** - Identifying objects, people, text, scenes, and activities 2. **Facial analysis** - Detecting faces, analyzing facial attributes (emotions, age range, gender) 3. **Face comparison** - Comparing faces for similarity 4. **Content moderation** - Detecting inappropriate or unsafe content **Why other options are incorrect:** - **A (Converting speech into text)**: This is the function of Amazon Transcribe - **C (Translating text between languages)**: This is the function of Amazon Translate - **D (Generating natural-sounding speech)**: This is the function of Amazon Polly Amazon Rekognition is part of AWS's AI/ML services and is commonly used for applications like content moderation, facial recognition, image analysis, and video analysis.

Author: Ritesh Yadav