Which of the following is a paid service that gives Amazon.com sellers access to a designated Amazon account manager?

Strategic Account Services is the correct answer because it is a paid service that gives Amazon.com sellers access to a designated Amazon account manager. This service provides personalized support and guidance to help sellers optimize their operations, improve their sales performance, and navigate complex aspects of selling on Amazon. The dedicated account manager works closely with the seller to provide tailored strategies, insights, and solutions to meet the seller's unique business needs. In contrast, Seller Central support is available to all sellers but does not provide a designated account manager, and Seller University offers educational resources rather than one-on-one support.