Question

If your friend tells you about his personal problems thinking that you are trustworthy person, you should __________
(1) Share it with everyone
(2) Feel happy about it
(3) Maintain confidentiality
(4) Look at him with contempt

Answer 1

2) Feel happy about it.
.
This is because he is finding you to be trustworthy, he feels that you're loyal to him /her. And The friendship will continue to be a very good bond.

Answer 2

2)-Because you should be lucky to have a friend who can open up so easily to you and trusts you enough to tell you this. A friends trust is just as important as your parents trust.