Derivative

How do u guys feel about derivative section? I think it is easy even I am not working in this area. However, I got one mistake on the American Put, which i should not committ the mistake on since I can calculate the correct answer on the European Put for min value. The other one asked about the Cover Call and Protective Put.

it was HARD…well i cant even rmr the questions now unless someone posts them…but i think i rmr 2 and those i got right.