Which two statements are correct about the usage of parameters in functions?

Which two statements are correct about the usage of parameters in functions? (Choose two.)

A.
Functions can have only in mode parameters.

B.
Functions called in SQL statements cannot have out or in out mode parameters.

C.
Functions having in, out, or in out parameters can be called only in named PL/SQL
subprograms

D.
Functions having in, out, or in out parameters can be called In PL/SQL procedures and
anonymous blocks.

Explanation: