You want to create a role to meet these requirements:  1:The role is to be protected from unauthorized usage.  2:The password of the role is not to be embedded in the application source code or stored in a table.  Which method would you use to restrict enabling of such roles()
A:Create the role with global authentication.
B:Create the role with external authentication.
C:Create the role as a secure application role.
D:Create the role as a password-protected role.
E:Create a role and use Fine-Grained Access Control (FGAC) to secure the role.
出自:Oracle认证