The guy was waiting for christoper Columbus at the train station
"The domesticated generations fell from him" means that Buck is losing his civilized characteristics (B).
In this passage, Buck is feeling more and more estranged from where he and his ancestors ("generations") originally come from: as he gets a taste of wild life, he feels less and less like a pet ("domesticated") and more like a feral dog or a wolf. He is forgetting his stay-at-home ways ("fell from him") and sees new instincts grow in him, such as the drive to fight and hunt in a pack.
The correct answer for the question that is being presented above is this one: C."I've always loved the patriotic song 'You're a Grand Old Flag,'" John said. The sentence that does not contain any punctuation errors is this <span>C."I've always loved the patriotic song 'You're a Grand Old Flag,'" John said.</span>
