Answer:
If You Swallow the Semen of an HIV-Positive Person Can You Be Infected?
Explanation:
You can contract it if there are open wounds in your mouth
1700
1800
1900
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
2010
ok thx
D
I would say Option B
A controlled experiment is where you have two or more independent variables, that way you have an experiment to compare results with.