Give a brief description of the flow of blood through the body starting from the left atrium.
a) Left atrium receives oxygenated blood, pumps to left ventricle, which then sends it to the body via the aorta.
b) Left atrium receives deoxygenated blood, pumps to left ventricle, which then sends it to the lungs for oxygenation.
c) Left atrium receives oxygenated blood, pumps to right ventricle, which then sends it to the lungs for oxygenation.
d) Left atrium receives deoxygenated blood, pumps to right ventricle, which then sends it to the body via the aorta.