The sequence of blood flow through the heart is _______.

A) right atrium $\rightarrow$ right ventricle $\rightarrow$ through pulmonary circulation left atrium
B) left atrium $\rightarrow$ left ventricle $\rightarrow$ right atrium $\rightarrow$ through pulmonary circulation
C) right ventricle $\rightarrow$ right atrium $\rightarrow$ through pulmonary circulation $\rightarrow$ left ventricle
D) through pulmonary circulation $\rightarrow$ right atrium $\rightarrow$ left atrium $\rightarrow$ right ventricle