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.