According to Cattell, a person trying to solve an entirely new kind of problem is using his or her__________, whereas a person working on a task that he or she knows well is using his or her ________

a. general ability, specific ability
b. intelligence B, intelligence A
c. fluid intelligence, crystallized intelligence
d. verbal ability, performance ability

3 answers

http://en.wikipedia.org/wiki/Fluid_and_crystallized_intelligence

What do you think?
I choose answer C
I agree.