An invEstor Buys 200 shArEs oFAB
C、At thE mArkEt priCE oF $100 on Full mArgin. thE initiAl mArgin rEquirEmEnt is 40 pErCEnt AnD thE mAintEnAnCE mArgin rEquirEmEnt is 25 pErCEnt.iF thE shArEs oF stoCk lAtEr solD For $ 200 pEr shArE, whAt is thE rAtE oF rEturn on thE mArgin trAnsACtion
A、

A、250%.

B、

B、100%.

C、

C、200%.