Fix a punctuation or capitalization error sheldon cooper is a natural when it comes to learning new instruments. for example, last week he googled a few guitar chords and started playing with no instructions. does the sentence above have good punctuation?

Which is the best contrast between the heracles myth and christopher reeve's life story? a. the mythical heracles and christopher both endured many trials calling on their reserves of strength and character. b. christopher reeve was injured on a horse, but heracles fought a bear. c. heracles' journey into the dark world of the afterlife pales beside christopher reeve's real-life struggle against grief and depression. d. heracles wasn't real but christopher reeve was.