请选择ABCD/?7G*k2_9o/h6}.x,V'k)f;S4R9p6cfifteen － _________ ＝ twelve+N8i:M-K*P
A. three+N8i:M-K*P
B. two+N8i:M-K*P
C. one+N8i:M-K*P
D. zero+N8i:M-K*P