The further [A] / farther [B] he pushed himself, the more disillusioned he grew. For the crowds it was more of a historical [A] / historic [B] event; for their leader, it was just another day. The old man has a healthy distrust [A] /mistrust [B] for all new technology. This film is based on a real [A] / true [B] story. One suspects that the compliment [A] / complement [B] was backhanded.
(2007)
"Further means degree or extent of something, whereas "farther" refers to distance in space or time. So "further" is the more appropriate word in this sentence." Historic" is the correct word to describe the event because it means "a significant event" whereas "historical" means ancient, past. "Distrust" is a feeling of suspicion and "mistrust" means lack of trust. In the given sentence, distrust fits in more appropriately making answer option (B) correct.