Answer:
A. To underscore his warning that they must remain chaste until they are married.
E. to celebrate and bless Ferdinand and Miranda's love and upcoming marriage
Step-by-step explanation:
Prospero has taken steps to give Miranda to Ferdinand in marriage. He blesses the upcoming marriage and warns Ferdinand not to break the "virgin-knot". Also, he calls on Ariel to summon spirits and carry out masque for Ferdinand and Miranda.
"The Tempest" is a playlet by William Shakespeare likely written around 1610-1611. The playlet centers on the use of magic, love, betrayal and forgiveness. The setting is an island somewhere close to Italy. It is in this island that Prospero and his pretty daughter, Miranda lived.