Task: Question Answering
Input (English): Problem: bag a contains red, white and blue marbles such that the red to white marble ratio is 1: 3 and the white to blue marble ratio is 2: 3. bag b contains red and white marbles in the ratio of 1: 4. together, the two bags contain 26 white marbles. how many red marbles could be in bag a ?
Options: a. 1, b. 3, c. 4, d. 2, e. 8
Output (English): d