The answer you are looking for is B.
Answer:
3 all of above, because exercising reduces your chances of getting sick, you can inherit disease from your parents and being fat causes you to develop health problems, for example: diabetes, asthma, high blood pressure, etc.
Unexpected means it was something you did not "expect" to happen such as a car crashing into you which means this is wrong.
Unfair is any injury.
Unnecessary means it was never needed and could have been prevented/not done therefore unnecessary is the best term.
