Task: Question Answering
Input (English): Question: In 1986 the book value of a certain car was 2/3 of the original price, and in 1988 its book value was 1/2 of the original purchase price. By what percent did the book value for this car decrease from 1986 to 1988?

 Option A: 16 2/3 %

 Option B: 25 percent

 Option C: 33 1/3 %

 Option D: 50%

 Option E: 75%
Output (English): Option B