You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Sentence: Vicky tried to bend a rubber tube into a circle. She then tried to do the same thing with a glass tube. One of them bent into a circle and the other one broke. Question: Which one did she successfully bend into a circle?
the rubber tube

Sentence: A man's boat is about to sink, so he throws his food and boxes of stuff overboard. Question: At which point would his boat be faster?
After the stuff is thrown overboard

Sentence: A penguin is forced to swim at a low rate of speed through icy water, but can swim rather quickly through clear water. Question: Which water is the most rough?
icy water