Answer:
a.
carries blood away from heart
Explanation:
Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues
Ambiguous stressors are more problematic because a) fewer clear-cut solutions exist be and c) the individual never knows what to expect.
C. that is your answer because as your heart contracts, blood flows and IF your heart is not strong enough, it will be hard to breathe.
Getting pregnant after having sex.