Answer:
what kind of chemistry is it going to be?
Answer:
temperate, hot, degradation, California
Explanation:
The correct answers from the choices are:
a. Reduce inflammation locally
b. Antagonize H1 receptors
c. May be administered orally
<span>d. Are systemically distributed
</span><span>Antihistamines are drugs that are H1 antagonists or blockers, may be administered orally, are distributed systemically, and do not directly reduce nasal congestion.</span>
I'm pretty sure that significant figures is just the amount of numbers there is. So, in this case I think the answer would be D. 5