Answer:
The correct answer is A. The proportion of light-colored moths would begin to increase.
Explanation:
I would predict that the peppered moth (Biston betularia) would respond to pollution control measures in Great Britain when the proportion of light-colored moths begins to increase. Studies in Great Britain proved the evolution of peppered moth, and the color change it underwent after pollution control measures were used during the Industrial Revolution. In the absence of pollution control measures, the dark-coloured moths increased, but in the presence of pollution control measures, the light-coloured moths increased and dominated.