Answer:
B blood is the answer
Explanation:
Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly.
EXACERBATION of side effects. You get double the side effects of sleepiness, dullness, dry mouth and impaired judgement. It is better to take an antihistamine alone or a cold medication preparation, which contains this. Do not take both. Also, take it at bedtime, so that it would help by causing sleepiness.