The tradition of hanging or wearing the willow in the Qingming Festival comes from the sayings except _____.

A、The willow tree Jie Zitui sat against when he was burnt death revived the next year.;
B、The willow branches could drive away the ghost according to the Buddhism.;
C、The willow branches on the door can cool the room.;
D、Hanging the willow branches on the door is to commemorate Shennong.