Question

Why does Haimon attack his father with a sword when they meet in the cavern?
Pride has persuaded Haimon that the king must die.
I believe it is this-->Grief has destroyed Haimon's reason.
Love has inspired Haimon to protect Antigone.
Sorrow has driven Haimon to kill himself.

Answer 1

B. Grief has destroyed Haimon's reason. 

Answer 2

Answer:

Grief has destroyed Haimon's reason.

Explanation:

After finding out about the deceased body of his wife-to-be, Antigone, Haimon as his mind completely filled with grief and was aggressive and violent against his father. He was Emotionally worried and upset, he was unsuccessful in his attempt to attack his father and fatally injured himself. Before dying, he hugged intimately in his arms the body of his loved one.