_____lets you communicate with Amazon.com customers via email or Seller Central.The service uses encrypted email addresses for both customers and sellers and is the only approved method for communicating with customers on Amazon.com to complete orders or to respond to customer service questions.

Buyer-Seller Messaging is the correct answer because it is Amazon's approved communication channel for sellers to interact with customers regarding orders or customer service inquiries. It uses encrypted email addresses to protect privacy and ensures all communications adhere to Amazon's policies. Sellers should use this service for all customer contact to maintain compliance and avoid policy violations. Feedback Manager is incorrect because it is a tool for sellers to monitor and respond to customer feedback and reviews, not for direct, order-related communication.