The answer is C. The endothelium on the inside of the artery.
The answer is A, because you don't want those extremely dangerous chemicals to harm or even kill a living person/pet.
Hope this helps and have a nice day:)
Explanation:
How do you know she's active but she's not replying to you? Isn't that a bit of stalker-ish behavior?
What was the last message you sent her? You probably should be able to text her again without her being annoyed.
