You have an Azure subscription that contains a user named User1 and a storage account that hosts a blob container named blob1. You need to grant User1 access to...

You have an Azure subscription that contains a user named User1 and a storage account that hosts a blob container named blob1.
You need to grant User1 access to blob1. The solution must ensure that the access expires after six days.
What should you use?

A. a shared access signature (SAS) B. role-based access control (RBAC) C. a shared access policy D. a managed identity