Answer :
Among the choices provided, the statement that is not a factor that influenced Darwin in his writing of the theory of evolution by natural selection is letter A, he was strongly against creationism and set out to disprove it. The Evolution by Natural Selection is Darwin's grand idea of evolution.
Darwin was against creationism. He was concerned with science. He supported the fact that biological evolution takes place via evolution in the ancestors and is not created suddenly. he said that evolutio changes one organsim into another one, adaptations.