The answer is b. strain
because tear and sprain is when you over do something involving that muscle and/or misuse it. and cramp is just something that happens and you cant really control.
Public lice, i think that is the one because it can be spread by sharing combs, contact by long hair, and many other scenarios.
Explain that testing for him would be of no benefit because of the current test limitations but that his family history does place <span>him a high risk.</span>
I say it D because u can have more than one role. your family can influence what roles u have. and the role u have inside u family isn't always the role u have outside the family. I hope this helps