I believe it’s D. It’s not A because when you use your muscles you’re getting micro tears that repair and grow.
Answer:
Human papillomavirus (HPV)
Explanation:
The rough growths described are warts, which are skin growths caused by HPV.
HPV stimulates the growth of the cells on the outer layer of the skin, forming warts. There are many types of HPV, some cause warts on the hands, others can affect the feet, face, genitals, and more.
HPV infections are very common and can be spread by skin-skin contact
Honestly, I'm not positive myself. All I can say is that overworking your joints without enough cool-down time will put you at high risk for arthritis.