Answer:
The correct answer is: <u><em>Congelado</em></u>, that means Frozen.
Explanation:
On a hot day, people feel really warm and dehydrated, which sometimes could make them feel uncomfortable or sick, so the treatment to avoid dehydration is to moisturize the body normally with something frozen ("<em>congelado</em>") that lowers the body temperature and therefore triggers a refreshment feeling.
Something hot ("<em>caliente</em>"), that it is also applied to fried food ("frito"), are not recommended as they could increase the temperature of the body promoting its dehydration and with it reduce the sensation of refreshment.
Something canned ("<em>enlatado</em>") could work for refreshment only if the content was something that increases the body temperature, but normally that is not the case of canned food, so that is not the correct answer.
