Plz help i can't figure this out 55 pts

Read o captain! my captain! by walt whitman, 1819 - 1892 and tell me the theme

Identify the sentence with all words spelled correctly. a. ? it's your responsabilitiy to lock up. b. ? it's your responsability to lock up. c. ? it's your responsabilty to lock up. d. ? it's your responsibility to lock up.

Which sentence from the story best supports the idea that olly is not useful to pops