I believe the correct answer is B because you obviously need to see if the person is still alive or not. I'm having second thoughts that it might be A.. I'm not sure which. Hopefully you get it right
Answer:
The factors that helped her lose weight is healthy diet and exercises.
Explanation:
If she didn't do those 2 ^ she wouldn't have lost weight.
C. On average they tend to die about 10 years earlier