{$mEDiAurl}
ACCorDing to thE proFEssor, whAt hAppEns to A CloCk CArriED in A FAst vEhiClEA．thErE is no ChAngE.
B．thE CloCk stops working.
C．timE will AppEAr to movE BACkwArDs.
D．thE CloCk will BEComE slowEr.