Task: Question Answering
Input (English): Problem: ann and bob drive separately to a meeting. ann ' s average driving speed is greater than bob ' s avergae driving speed by one - third of bob ' s average driving speed, and ann drives twice as many miles as bob. what is the ratio e of the number of hours ann spends driving to the meeting to the number of hours bob spends driving to the meeting ?
Options: a. 8: 3, b. 3: 2, c. 4: 3, d. 2: 3, e. 3: 8
Output (English): b