All of the Following Represent Restrictions on Functions, Except ____

Multiple Choice

All of the following represent restrictions on functions, except ____.

A) Functions cannot modify any tables in Oracle8 and prior versions.
B) Functions cannot be used in a CHECK constraint or as a default value of a table column.
C) If used in a local operation, no reading or writing of packaged variables is allowed.
D) If used in a SELECT, VALUES, or SET clause, the function can write values to packaged variables; otherwise, it is not allowed.