Pretty sure it could be head circles because your neck is really delicate and if something happens, you could get seriously hurt or disabled from moving. (Sorry if I’m wrong, I’m no doctor)
The answer is B. This represents a pandemic because the outbreaks took place in several different countries.
Answer: Yes, because Sam is experiencing PTSD.
Explanation: PTSD is a psychiatric disorder that occurs to people after a traumatic experience. Since Sam survived a very bad car crash, he is traumatized and should seek professional help.
Hope this helps! :)
C.pump blood more efficiently
B. Old Stone Age.........................