If a company wants to build an interactive chatbot to make a call center more efficient, which AWS service should be used?

Explanations:

Amazon Connect is a cloud-based contact center service, but it is not specifically for building an interactive chatbot. It can integrate with other services to improve call center efficiency but is not the primary tool for chatbot development.

Amazon Lex is specifically designed for building conversational interfaces, including chatbots. It allows developers to create chatbots that can be integrated with Amazon Connect to automate and streamline call center operations.

Amazon Translate is a service for language translation, not for building chatbots. While it could help in multilingual scenarios, it doesn’t provide the interactive chatbot capabilities required for a call center.

Amazon Polly is a text-to-speech service, which converts text into natural-sounding speech. While useful for a voice-based chatbot, it doesn’t handle the conversational AI or interactive aspects of a chatbot on its own.