Answer:
D. Without proper fluid intake before a run, you can become dehydrated, which can lead to fatigue, muscle cramping, or even more serious complications such as heat stroke.
Step-by-step explanation:
"Running" and "hydration" go side-by-side. In order to have a good performance in running, it is important to consider the right kind and amount of fluid intake before, during and after running. The type of drink will largely depend on the intensity of the run. For example, you have to take in "sports drink" after a 90-minute run in order to replace the lost electrolytes.
Drinking coffee is also advisable, especially for a long run. Coffee doesn't cause dehydration. It is a diuretic, thus it may cause the runner to have more bathroom stops, but it will not dehydrate the runner.
The question is asking for the "right liquid" that will nourish the body, thus the answer is choice D. It talks about "proper fluid intake" before running. It also talks about the consequences of dehydration, which even makes proper fluid intake "essential."
So, this explains the answer.