The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely related to which of the following events?
A) A loss of food supply for the finches
B) The end of the drought
C) An increase in drought conditions
D) An increase in predators consuming finches
Answer: B) The end of the drought