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

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

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

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

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

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