whiCh oF thE Following stAtEmEnts is truE
A．ACtivE smokErs in gEnErAl pErFormED BEttEr thAn DEprivED smokErs.
B．ACtivE smokErs rEsponDED morE quiCkly thAn thE othEr suBjECts.
C．non-smokErs wErE not BEttEr thAn othEr suBjECts in pErForming simplE tAsks.
D．DEprivED smokErs gAvE thE slowEst rEsponsEs to thE vArious tAsks.