Answer:
O A lot of stress over time
Step-by-step explanation:
A fight or flight situation that is most likely to cause health problems is a lot of stress over time because stress is the answer the body has to what you perceive as dangerous situations and it can cause reactions as high blood pressure, fast breathing and an increase in the heart rate. The body can handle a short period of stress but it is not able to handle it long term and when this happens, stress can generate mental problems, heart diseases, stomach and sking problems, among others.
The other options are not right because a short burst of stress that motivates the person to finish a project and occasional stress are for a small period and the body can manage it. Also, a stress that the person decides to avoid doesn't cause reactions that can generate a health problem.