Examine (a), (b), and (c) to find the best answer:
a)
b)
c) percent
a) of
b) of
c) of
(a), (b), and (c) are all unequal
(a) is equal to (b)
(a), (b), and (c) are all equal
(a) is equal to (c)
percent
of 
of 
of 