At the beginning of Act 4, what arrangement does Prospero approve?

What agreement does Prospero make with Miranda and Ferdinand at the start of Act IV of The Tempest? He agrees to let them get married.

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

d is the best answer for this question.