D. having trouble relaxing
Answer:
The answer is 2: A series of physical and psychological reactions that occur when you respond to a demanding or threatening situation.
Explanation:
Process of elimination:
1 - You can never completely eliminate stress
3 - Stress doesn't always manifest for a physical threat, it can form because you have a test next period or because you have an upcoming project,
4 - Stress is not always harmful, it also can come and go and you might even feel better afterwards, as in cases of physical stress.
Drug response can be impacted by several factors including diet, comorbidities, age, weight, drug–drug interactions, and genetics. Individual genetic variation in key genes involved in the metabolism, transport, or drug target can contribute to risk of adverse events108 or treatment failure.
Your overall ability to accept challenges in your life. To make you a better person.
c. collision sports same thing as saying contact sports such as football is a collision sport