How does Daedalus react to Icarus's death?
He blames himself and regrets the invention he took such care to create.
He vows to put the past behind him and find a different way off the island.
O He realizes he has sacrificed his only son to prove his own greatness.
O He feels angry with his son for flying too close to the sun.

Daedalus was trying to help his son by telling him the instructions on how he can use his wings to fly away and have his freedom. The problem was not the invention of Daedalus, the problem was Icarus' behavior. He was carried away with the sense of the freedom and powers of the wings so he forgot everything that his father said to him.

The first answer is not correct because there was nothing wrong with Daedalus' invention.

He did not put the past behind him, he called the sea and the place where Icarus felt - Icaria. That is why the second question is also not correct. He was very sad because his son died.

The third answer is also not correct because he did not proving his greatness, he wanted freedom and beautiful life for him,