I think the answer is A because I have never learned about collapsed veins and it won’t cause arthritis
HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Answer: A
Explanation: C would be the Fallopian tubes
No they arent safe to some extent, Yes, famous baseball players have taken steroids one of the reasons they may have been so good, and im not sure about a side affect, they may get addicted, then over use it, and that could have a side affect