Scientists believe that unlike the males of most species of moth, the male whistling moths of Numbing, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.
A. by the use of acoustical signals, but not olfactory ones, and they attract
B. by the use of acoustical signals instead of using olfactory ones, and attracting
C. by using acoustical signals, not using olfactory ones, and by attracting
D. using acoustical signals, rather than olfactory ones, and attract
E. using acoustical signals, but not olfactory ones, and attracting
这题C为什么不对 非要选D
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