Given the task definition and input, reply with output. Craft one incorrect answer. In doing so, try to use words from the context as much as possible, or by using similar words used in the correct answer. DO NOT craft nonsensical or off-topic incorrect answers, such that the incorrect answers can be directly excluded without reasoning according to the context. Try to make your responses similar to the given correct answer. To this end, try to keep both the length and the style as similar as possible between the correct and the incorrect answer. To make your incorrect answers more difficult, try to incorporate words from context. To avoid being predictable or repetitive, try to add more variations and complexity.

Context: The nay - sayers of course say it does . All it says , however , is that there are longer - term trends that must be accounted for . And short - term developments that should scare us . Reports have come in recently of sightings of polar bears swimming from Alaska to find ice in the Arctic Ocean . Polar bears have been known to swim as much as 100 miles to find ice on which to hunt .
Question: What may be the reason polar bears need ice ?
Correct Answer: They need ice to hunt .
They need ice to cool off after hunting .