What is the possible cause?

When a developer calls the Alibaba Cloud SDK to access Elastic Compute Service (ECS), the following error is returned; RealNameAuthenticationError

What is the possible cause?
A . The ECS instance name violates the ECS service’s naming conventions.
B . The ECS instance name conflicts with other instance names.
C . The user’s Alibaba Cloud account has not passed real name authentication
D . The API callers account and password are not authorized for ECS access.

View Answer

Answer: D