Which Statement Accurately Describes the Structures of the Heart

Which statement accurately describes the structures of the heart?

A) The right atrium is a reservoir,or collecting chamber,for the peripheral venous return.
B) The left ventricle receives blood from the right atrium and pumps it into the lungs via the pulmonary artery.
C) The right ventricle receives blood from the left atrium and pumps it into the systemic circulation via the aorta.
D) The left atrium receives deoxygenated blood from the entire body (except the lungs) through the superior and inferior venae cavae with an approximate saturation of 100%.