Which statement is true about loading data using the conventional path of SQL*Loader（）

ARedo is not generated while performing conventional path loads.

BOnly PRIMARY KEY， UNIQUE KEY， and NOT NULL constraints are checked.

CNo exclusive locks are acquired when the conventional path loads are performed.

DInstead of performing transactions， SQL*Loader directly writes data blocks to the data files.

EINSERT triggers are disabled before the conventional path load and reenabled at the end of the load