What percent of the employees of Company X are technicians ？（）
(1)Exactly 40 percent of the men and 55 percent of the women employed by Company X are technicians.
(2)At Company X, the ratio of the number of technicians to the number of nontechnicians is 9 to 11.
A．条件(1)充分，但条件(2)不充分．
B．条件(2)充分，但条件(1)不充分．
C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D．条件(1)充分，条件(2)也充分．
E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．
