Answer:
Arteries carry oxygenated blood from the heart, while veins carry oxygen-depleted blood back to the heart. ... The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)
It would be helpful is you added the answer choices, but she could increase the intensity/work with more vigour to increase her heart rate.
The only cure is rest. Antibiotics don't work because these are viruses and cold medicines help with symptoms so you feel a bit better but rest is really the only cure.
