Harry started a 7-mile hike with a full 9-cup canteen of water and finished the hike in 2 hours with 3 cup of water remaining in the canteen. If the canteen leaked at the rate of 1 cup per hour and Harry drank 2 cups of water during the last mile, how many cups did he drink per mile during the first 6 miles of the hike? Pick one:	A) 1 / 6	B) 2 / 6	C) 3 / 6	D) 4 / 6	E) 5 / 6

Rationale: "no of cups leaked during the trip = 2 cups . no of cups harry drank = 6 cups . no of cups harry drank during the first 6 miles = 4 . drink / mile = 4 / 6 answer d"
Answer: D