In Paper I (2013) the Answer to the following is:

8: Which neurotransmitter plays an important role in the experience of pleasure?
a) Serotonin
b) Dopamine
c) Nor-epinephrine
d) Acetylcholine

Option (c) Nor-epinephrine is incorrect option since it is released during fight-or-flight response.

10: The process through which a learned response stops occuring due to the non-availability of reinforcement is called:
a) Generalization
b) Punishment
c) Spontaneous Recovery
d) Extinction

Option (b) Punishment is incorrect since it decreases an undesirable learned behavior by either adding something unpleasant or taking away something unpleasant.

__________________
"All I know is that I know nothing." - Socrates