Econ's exam

this few day although have some exam..
but i think it stil ok la..
for the economy..
we have to test for 3 chapter..
haha..but i study for 1 chapter only..
luckily i stil can manage to answer the question...
bcoz most of the question come from d chapter i read..
hehe...
but got something that make me sad eh is...
got a question i very got confidence i can get full marks eh...
but at last when discuss with teacher..
i baru know that i count wrong..
i count wrong for question a
the answer need to use it to count for b and c..
so wrong all le..
haha..but nvm la...