Final answer:
Blood enters the right ventricle and then it is pumped into the pulmonary artery. Hence, the correct choice would be D. Pulmonary artery.
Step-by-step explanation:
After blood enters the right ventricle, it is pumped into the pulmonary artery. This is the correct answer to your multiple-choice question, therefore, the selection would be D. Pulmonary artery. The right ventricle of the heart is tasked with receiving deoxygenated blood from the right atrium which it then pushes to the lungs through the pulmonary arteries for oxygenation. It does not go directly to the aorta, left ventricle, or left atrium after the right ventricle in the circulation process.
Learn more about Circulation Process