Task: Question Answering
Input (English): Problem: harry started a 4 - mile hike with a full 6 - cup canteen of water and finished the hike in 2 hours with 1 cup of water remaining in the canteen. if the canteen leaked at the rate of 1 cup per hour and harry drank 1 cups of water during the last mile, how many cups did he drink per mile during the first 3 miles of the hike ?
Options: a. 1 / 3, b. 2 / 3, c. 3 / 4, d. 5 / 4, e. 4 / 3
Output (English): b