Question

5. The sounds of the heartbeat are made by
the
a) flow of blood through the arteries
b) pumping of blood into the arteries
c) closing of the valves in the heart
d) flow of blood through the veins​

Answer 1

Answer:

option b is correct

pls mark me as the brainliest

Answer 2

Answer:

$\huge \red{pumping \: of \: blood \: into \: the \: arteries}$