I will go with C
C.Butterfly species that respond quickly to changes in temperature hatch caterpillars and undergo metamorphosis into butterflies earlier, flying away before bird species that feed exclusively on them have hatched their young
butterflies will fly away earlier-> no food for species that eat only butterflies -> species will extinct
We are asked to find the answer based on the 'Longer growing season'. Option 'C' is based on 'temperature change', rather than 'Longer growing season'.