The contents of a certain box consist of 14 Apples and 23 Oranges. How many oranges must be removed from the box so that 70 percent of the pieces of fruit in the box will be apples?

a. 3
b. 6
c. 14
d. 17
e. 20

Here is my approach:

37(.7) = 25.9 . That means, # of apples must be increased by 12 (12+14=26) to satisfy the 70% requirement.

Therefore # of oranges removed = 12. However, 12 is NOT one of the answer choices. Could one of you please point out the flaw.

Thanks!