How does lady catherine do bourgh treat elizabeth?

Read the excerpt from act 3, scene 1, of julius caesar. servant. thus, brutus, did my master bid me kneel. thus did mark antony bid me fall down, and, being prostrate, thus he bade me say. "brutus is noble, wise, valiant, and honest. caesar was mighty, bold, royal, and loving. say i love brutus, and i honour him. say i feared caesar, honoured him, and loved him. if brutus will vouchsafe that antony may safely come to him and be resolved how caesar hath deserved to lie in death, mark antony shall not love caesar dead so well as brutus living, but will follow the fortunes and affairs of noble brutus thorough the hazards of this untrod state with all true faith.” so says my master antony

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

How does the author foreshadow trouble in the prison? support your answer with explicit textual evidence.