<span>During this event, the stomach virus caused water to leave the cells, leaving the cell at risk of death from having too much of other substances, such as salt. Having sports drinks can bring the water and salts levels back into balance by allowing isotonic conditions to be re-established.</span>
B. Subcutaneous
this means that the needle goes into the fat layer of the skin.
it does NOT go into the muscle.
hope this helps.
Answer: C. to move around from one setting to another.
Explanation: When writting nonfiction, the author have to be well plotted such that such makes and give his writing more freedom in moving around form one setting to another.