When ACCESS_INTO_NULL exception does is raised?

A)  A unique index column with duplicate values is raised when this error occurs.
B)  An automatic assignment of a value to a NULL object raises this exception.
C)  It is raised when more than one row is returned by a SELECT INTO statement.
D)  An invalid username or password is used by a program to connect to a database.

Correct Answer :   An automatic assignment of a value to a NULL object raises this exception.


Explanation : ACCESS_INTO_NULL exception is raised when an automatic assignment of a value to a NULL object raises this exception.