Thirty years ago, a pesticide was highly effective in killing mosquitoes. Today it kills a much smaller proportion of the mosquitoes to which it is applied. Which statement best explains why the pesticide has become less effective in killing mosquitoes A. The mosquitoes that survived developed a greater response to DDT
B. The mosquitoes that survived passed on resistance to their offspring.
C. The mosquitoes that survived experienced permanent mutations that caused resistance.
D. The mosquitoes that survived forced the development of adaptations to be resistant to DDT