—Now the weight. Only 115. You’d better put on a few pounds.

—Well, actually, I ________ like a horse.

A．ate

B．was eating

C．have been eating

D．will eat

本案中对该红木家具乙要求行使抵押权，丙要求行使质押权，丁要求行使留置权，应由谁优先行使其权利为什么