A persons mental and emotional health is most directly affected by

Stress.

Hope it helps yah

Your self-confidence.

Explanation:

Your self-esteem is based on your self-confidence. Self-confidence is the ability to believe in yourself, your abilities, your knowledge, and your ability to do something. In other words, it's about having faith in your own abilities and skills.

i think your answer is c. measurement system in which the medication dosage was calculated.

it'll be alright, just keep on going and keep your head up!