Which statement lists the benefits of using container-managed persistence for entity beans?

A.
The bean developer must write less code; database operation optimization methods can be
implemented; and bean code is more portable

B.
Bugs are easier to find in container-generated code; bean developers can focus on business
logic; and the container will require fewer resources when using CMP.

C.
Database connection calls are managed by the bean developer; CMP may reduce the number
of bugs in bean code; and container-generated custom finder methods can be used.

D.
The container provides mapping tools to map entity bean fields to a relations columns; EJB
servers that provide high-end CMP services are less expensive; and CMP can support complex
SQL JOIN operations.