You don’t know the other person’s side of the story
(This is isn’t really related to health)
number 2 is for question 1
number 1 is for question 3
number 4 is for question 2
number 3 is for question 4
If you will accept two answers, B and C are correct. If not, choose C because this individual is running long distance over and over again they will have an increase in muscular endurance.