In human body `A` is a pumping organ from lungs blood vessel `B` with oxygenated blood enters upper `C` part of left chamber of the organ. When "C" chamber contracts blood flows into "D" lower left chamber. "D" chamber contracts blood is pumped to all parts of the body except lungs through blood vessel E. Deoxygenated blood from body parts is collected by blood vessel "F " and opens upper "G" right chamber. This chamber contracts blood flows into "H" lower chamber Lastly "H" contracts Deoxygenated blood sent to lungs by blood vessel "I"
b) (i) B (ii)E (iii) F and (iv) I are what blood vessels ? Write their names.

Options

A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle