Question

from the heart, deoxygenated blood travels to...
the lungs to pick up oxygen and drop off carbon dioxide waste.
the lungs to pick up carbon dioxide and drop off oxygen waste.
the kidneys to pick up oxygen
the kidneys to drop off waste

Explanation:

Deoxygenated blood from the heart goes to the lungs. In the lungs, it picks up oxygen and releases carbon - dioxide waste through the process of gas exchange. The kidneys are mainly involved in filtering waste from the blood and maintaining fluid balance, not gas exchange for oxygenation.

Answer:

the lungs to pick up oxygen and drop off carbon dioxide waste.