Answers with Explanations:
Compare the way Biff treats his father with the way Happy does.
The question above is related to a popular play entitled "Death of a Salesman." It focuses on the life of "Willy Loman," a 63-year-old salesman who is deemed insecure and unstable. He has two sons namely Biff and Happy.
Compared to Happy, Biff wants to please his father all the time. He wanted his father to be proud of him because he believes in him. His father modeled him into not following the rules, thus, Biff also follows such example of not conforming to social rules. On the contrary, as the youngest child, Happy always wanted attention from his parents and from others. This is because he was fond of listening to his father's decorated truths and this affected his personality. He then craves to make things favorable on his end.
Why is it hard for Biff to tell Willy the truth?
Biff always believed in his father until he found out about his having an affair with a woman. He always thought he was an "ideal father" and such incident broke Biff so hard. It also made him realize that all of them were living in a lie. Since he knew his father was also fake, it made it even harder for him to tell the truth.
Why doesn't Happy want him to?
Compared to Happy, Biff wanted to accept the flaw of his father's affair. However, Happy didn't want to accept the truth that's why he wanted them to live in pretense. He also thought it was just normal having an affair with women because he too was a womanizer. Happy always wanted to be looked upon as a "goody-two-shoes." He tried accommodating the emotions of people instead of confronting the truth.