Q. Assigning a value to a collection element can cause exceptions, such as

• (A) If the subscript is NULL or is not convertible to the right datatype, PL/SQL raises the predefined exception VALUE_ERROR. Usually, the subscript must be an integer. Associative arrays can also be declared to have VARCHAR2 subscripts.
• (B) If the subscript refers to an uninitialized element, PL/SQL raises SUBSCRIPT_BEYOND_COUNT.
• (C) If the collection is atomically null, PL/SQL raises COLLECTION_IS_NULL.
• (D) All mentioned above