Which of the following set of words is an example of homophones

What does water came out from a rock mean in this poem and why is it compared to the radio waltz? time was away and somewhere else. the waiter did not come, the clock forgot them and the radio waltz came out like water from a rock: time was away and somewhere else.

Which is included in the radio broadcast to capture the listener's attention that the original text of the story is not able to include

Why did the author include the fact that 40,000 african americans participated in the bus boycott