What is the significance of this sentence in debs’s speech

The ancient greek poet. homer, is credited with writing the odyssey. however, scholars still debate whether homer wrote the entire epic. what is the main reason for this uncertainty? o some sections of the epic are written in different poetic styles and forms. most ancient greeks could not read or write, so the epic was first written in latin ob och storytellers repeated the epic aloud for centuries before it was ever written down. od the epic was a fictional account, so the identity of its author may have been fictionalized as well.

Read the following sentence from excerpt of the narrative of the live of frederick douglass and define the bolded word: "why master was so careful of her, may be safely let to conjecture." question 10 options: a) prayer or hope b) guesswork or speculation c) relief or ease d) disapproval or disappointment

Could someone me with this question?