单项选择题
A.46,XX(XY),-21,+t21q B.47,XX(XY),+21, C.46,XX(XY),-l4,+t(14q21q) D.45,XX(XY),-l4,-21,+t(14q2lq) E.46,XX(XY),-22,+t(21q22q)