Which AWS service or feature will meet these requirements?

Explanations:

Amazon Rekognition is a service that provides pre-trained machine learning models for image and video analysis, including image classification, object detection, and facial recognition, making it ideal for classifying images uploaded to a website.

Amazon SageMaker Clarify is used for detecting bias in machine learning models and for providing explanations of model predictions, but it is not specifically designed for image classification.

Amazon Mechanical Turk is a crowdsourcing service that enables humans to perform tasks that are difficult for machines. It is not a machine learning service for image classification.

Amazon Transcribe is a service for automatic speech recognition (ASR) that converts audio to text, which is unrelated to image classification tasks.