Which two statements are true about Enterprise Manager (EM) Express?

A. You cannot start up a database instance using EM Express.

B. You can shut down a database instance using EM Express.

C. You can use a single instance of EM Express to manage multiple database running on the same server.

D. EM Express uses a separate repository database to store target database metadata.

E. By default, EM express is available for a database after database creation using DBCA.