Which AWS service provides machine-learning capabilities to detect and analyze objects and activities in images and videos?

Amazon Rekognition is the correct answer because it is a machine learning service that automates image and video analysis. It can identify objects, people, text, scenes, and activities, as well as detect inappropriate content. Amazon Connect is a cloud-based contact center service. Amazon Lightsail is a virtual private server (VPS) provider, offering easily deployable compute, storage, and networking capacity. Amazon Personalize is a machine learning service that helps developers create real-time personalized recommendations for customers. These services do not primarily focus on detecting and analyzing objects and activities in images and videos.