Which of the following are involved directly in pulmonary circulation?

Left ventricle, aorta, and inferior vena cava
Right atrium, aorta, and left ventricle
Superior vena cava, right atrium, and left ventricle
Right ventricle, pulmonary artery, and left atrium

The correct answer is D. Right ventricle, pulmonary artery, and left atrium.

The pulmonary circulation is the part of the circulatory system that carries deoxygenated blood from the right ventricle of the heart to the lungs, where it picks up oxygen and releases carbon dioxide. The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs. The left atrium receives oxygenated blood from the lungs through the pulmonary veins.

The other options are incorrect because they do not include the pulmonary artery or the left atrium. The left ventricle, aorta, and inferior vena cava are involved in systemic circulation, which carries oxygenated blood from the left ventricle to the rest of the body. The superior vena cava and right atrium are involved in both pulmonary and systemic circulation.