Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.
Explanation:
hope this helps...
and if u didn't get it its veins...
Continue to have check ups just because you are treated doesn’t mean it’s gone fully and can’t come back.
Second option is the answer
D. because , after time you might change your mind on that person and want to get a divorce..