Which of the Following Is True While Using an IAM

Multiple Choice

Which of the following is true while using an IAM role to grant permissions to applications running on Amazon EC2 instances?

A) All applications on the instance share the same role, but different permissions.
B) All applications on the instance share multiple roles and permissions.
C) Multiple roles are assigned to an EC2 instance at a time.
D) Only one role can be assigned to an EC2 instance at a time.