Which sentence uses commas correctly? a) one day matthew would love to play golf on the pga tour win the masters, and design golf courses. b) she wants to become a pharmacist so that she can others pay her bills, and live independently. c) michael's biggest dream is to graduate college, move to new york become an actor, and win a tony award. d) after winning the lottery, sam retired from his job, bought a small house on the lake, and paid for his kids' college tuition.

100% The answer is D. Positive

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.