[单选题]-|||-已知A,B,C为三个随机事件,A与C互斥,且 (C)=dfrac (1)(3) ?(AB)=dfrac (1)(2), __-|||-则 (AB|C)=-|||-A. dfrac (3)(4)-|||-B. dfrac (1)(2)-|||-C. dfrac (1)(3)-|||-D.0