I would say it's a compulsion. Hope this helped!
-TTL
Answer:
a sign that there is bleeding somewhere along the digestive tract.
Explanation:
The true statement is B. Teens are more vulnerable to contracting an STI because their bodies are less developed than adults. Also, from statistics, it has been reported that there are approximately 20 million new cases of STI in the US each year. Most of these cases are from the age group 15 - 24. The bodies of these teens are more biologically susceptible to STIs.
The answer is Decay!
I hope this helps :)