Final answer:
A Resource Group is a logical container in Microsoft Azure used to group related resources together, allowing for simplified management, deployment, and billing.
Step-by-step explanation:
In Microsoft Azure, a logical container for resources deployed is known as a Resource Group. A Resource Group is a fundamental element of Azure Resource Management and serves as a collection that holds related resources for an Azure solution. For instance, one could have a Resource Group containing all the elements of a single application, such as the virtual machines, databases, and more, which allows for easy management, deployment, and monitoring of related resources. It's also useful for allocating billing and for applying access policies uniformly to resources within the same group. The correct answer to the question is A) Resource Group.