Which statement about the giraffes explains their evolution based on Charles Darwin’s main points? a) The closest fossil ancestor to these giraffes would have a very short neck. b)All three of the giraffes have an equal chance of reproducing regardless of the environment. c)As a giraffe reached for food, the giraffe could make its neck longer making it better adapted to the environment. d)Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks.