Blood that leaves the heart for the body passes through a large blood vessel called the
a. pulmonary vein.
b. pulmonary artery.
c. aorta.
d. vena cava.

osha website is the answer

b and c would be the answers

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.