As part of the 28th annual Bed & Breakfast expedition, a

As part of the 28th annual Bed & Breakfast expedition, a group of hikers has gathered at the entrance to the Xantis mountain deer park. Robert, the lead mountaineer checked whether Anne, responsible for bringing bottled water for the entire group, has done her job. He realized that she brought only half as much water as he had asked her to bring. He declares that unless they can procure more bottled water, the hike will have to be delayed.

Which of the following additional premises, if introduced into the argument, would NOT allow the leader's conclusion to be logically drawn?
A. Quantity of bottled water that Robert had specified is necessary in order to conduct the scientific experiment that the group had planned to conduct in the park.
B. Park security personnel will not allow groups to enter unless they have a minimum amount of water per person.
C. It is such a hot day that hiking without sufficient water supplies could expose hikers to dehydration and heat stroke.
D. There are no safe water supplies in the area in which the group plans to hike.
E. The person who did not bring enough water also neglected to bring a hat or hiking boots.