Oxygen-rich blood flows a. through the pulmonary circulation.

b. through the systemic circulation,

C. from the lungs to the heart.

d. all of the above

Not sure exactly what kind of answer you are looking for so i hope this able to be a effective listener and also being  a good conversationalist. and most of all just being there when someone needs you.i hope this .

Answer im thinking prostate;

Ynot italian? hope this !