The pulmonary artery is the part of the circulatory system that carries deoxygenated blood. The blockage in the pulmonary artery will back up the blood into the right ventricle. Thus, option d is correct.
<h3>What is the right ventricle?</h3>
The right ventricle is one of the chambers of the heart that is present on the lower side and pumps the blood with low oxygen concentration. It receives the deoxygenated blood from the upper chamber called the right atrium.
The deoxygenated blood from the body is collected by the pulmonary artery that passes it to the right ventricle of the heart. This then passes to the left atrium where the oxygenated blood is circulated to the body.
Therefore, option d. blockage in the pulmonary artery will move the blood into the right ventricle.
Learn more about the right ventricle here:
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Your question is incomplete, but most probably your full question was, As a result of a blockage in the pulmonary artery, blood would first back up into the:
a. aorta.
b. left ventricle.
c. pulmonary veins.
d. right ventricle.