Question

which component of blood allows oxygen from the air to move from the lungs to cells of the body?
white blood cells
platelets
plasma
red blood cells

Explanation:

Red blood cells contain hemoglobin, which binds to oxygen in the lungs and transports it to body cells. White blood cells fight infections, platelets help in blood clotting, and plasma is the liquid part of blood that carries nutrients, hormones, etc., but not the main oxygen - carrier.

Answer:

red blood cells