Given the two classes:
Choose the option that best evaluates the example:
A.
This is a valid example of two EJBs used as JAX-RS resources, one a root resource and the
other a subresource.
B.
This is an invalid example, because EJBs that are to be used as JAX-RS subresources have to
match the type of EJB of their “parent” resource.
C.
This is an invalid example, because singleton EJBs used as JAX-RS resources must explicitly
state what locking strategy they will require.
D.
This is an invalid example, because the JAX-specification only allows root resource types to
also be EJBs.
Explanation: