Task: Question Answering
Input (English): Question: Of the three numbers, the sum of the first two is 45; the sum of the second and the third is 55 and the sum of the third and thrice the first is 90. The third number is

 Option A: 15

 Option B: 20

 Option C: 25

 Option D: 30

 Option E: 35
Output (English): Option D