COME ON I AM DESPERATE FOR THIS SO PLS ANSWER

What lesson or moral can be learn from Sir Andrew's subplot? (The Twelfth Night)
I really need this now!!!

A. Don't think too much of yourself.
B. Always weigh your decisions carefully.
C. Don't trust your friends, especially if they drink.
D. Don't fall in love with wealthy women.
I also want a good explanation of why any of the answers are correct or wrong.