Which Statement Correctly Identifies the Goals of the Designers of the EJB

Which statement correctly identifies the goals of the designers of the EJB architecture?

A) The EJB architecture requires that users be aware of the low-level transaction details of the Java EE platform.
B) The EJB architecture is the standard component architecture for building distributed business applications in the Java programming language. ()
C) Although the EJB architecture defines the contracts that enable tools to develop and deploy components, each application server vendor must produce its own set of additional tooling.
D) The EJB architecture provides a standard way of persisting state data using the Java Persistence API, Java Data Objects, and JDBC.