Which two statements are true regarding a PL/SQL package body? (Choose two.)
A.
It cannot be created without a package specification.
B.
It cannot invoke subprograms defined in other packages.
C.
It can contain only the subprograms defined in the package specification.
D.
It can be changed and recompiled without making the package specification invalid.
Only after compiling the package spec, then we can compile the package body.
You can create the package spec without the package body.
You cannot create the package body, without the package spec