You are tasked with building a solution to classify customer reviews as positive or negative. The solution must handle real-time inferencing. Which of the following approaches and services are…

AWS Lambda can be used to invoke an endpoint for real-time predictions, acting as a serverless compute service to process incoming review requests and return classification results immediately.

Amazon Polly is a text-to-speech service, which is unrelated to classifying text reviews as positive or negative.

Amazon SageMaker Hosting Services provides robust, scalable endpoints for deploying trained models, which is crucial for handling real-time inference requests efficiently and reliably.

AWS Glue is an extract, transform, and load (ETL) service primarily used for batch processing and data preparation, not for real-time inferencing.

Amazon SageMaker offers comprehensive capabilities for training machine learning models, including sentiment analysis models, by providing managed infrastructure and tools for data preparation, algorithm selection, and hyperparameter tuning.