單項選擇題針灸治療痛經(jīng)實證應取的經(jīng)脈是()

A.任脈、足太陰經(jīng)
B.任脈、足厥陰經(jīng)
C.任脈、足少陰經(jīng)
D.沖脈、足太陰經(jīng)
E.任脈、沖脈