which of the following statement is/are true about the heart?

I. the heart is a muscular organ.

II. the heart pumps the blood throughout the body.

III. the heart is about the size of a clench fist

IV. the heart warms the blood before It goes to the lungs

A. I and II only
B. II and III only
C. I, II and III only

nonsense answer report thanks for answering:)​