Task: Question Answering
Input (English): Question: Let d > c > r > a. If c is twice as far from a as it is from d, and r is twice as far from c as it is from a, then (d - r)/(d - a) = ?

 Option A: 2/9

 Option B: 1/3

 Option C: 2/3

 Option D: 7/9

 Option E: 3/2
Output (English): Option D