Which of the following singular nouns changes vowled when made plural

If this were a fictionalized account, instead of a memoir, which might be the opening sentence? a) i am not your prisoner. b) i find myself in prison. c) you have taken me prisoner. d) black hawk had been taken prisoner.

Edgar allan poe uses many sound devices in his poem "the bells." which two words from the poem are examples of onomatopoeia?

According to the police officer, the car accident could not have been avoided.