In one type of immune response, cells of the immune system enter tissues lining the lungs and stomach. Their job is to patrol for and combat pathogens that enter these parts of the body. Which of the following makes the best argument of how systems work together in this type of immune response? A.

The nervous and muscular system work with the immune system to allow it to move.
B.

The excretory system works with the digestive system to remove wastes.
C.

The cardiovascular system works with the immune system to transport oxygen and glucose to the body cells.
D.

The digestive and respiratory systems work with the immune system to act as barriers, preventing pathogens from entering further into the body.

PLEASE HELP AS FAST AS YOU CAN :c