Which of the following modes is the default Fetch mode for Adapter classes and returns data in
an associative array on which the keys are the column names?

A.
Zend_Db::FETCH_BOTH

B.
Zend_Db::FETCH_ASSOC

C.
Zend_Db::FETCH_OBJ

D.
Zend_Db::FETCH_COLUMN