Red blood cells pick up oxygen in the lungs. Blood travels away from the heart and lungs through the arteries. Red blood cells drop off oxygen to the cells through tiny tubes called capillaries. Blood then returns to the heart through the veins and the cycle begins again.
In cancer, the cell cycle loses control
Call 911 first then administer chest compressions
This is the definition of challenging behavior
The answer to your question is: A) Divorce.
Hope this helps!