The major systems of the human body interact with each other to maintain homeostasis. Which of the following BEST describes how the circulatory and immune system work together? * A. The immune system produces voluntary and involuntary responses in the body, while the circulatory system produces red blood cells to fight infections.

B. The circulatory system influences the body’s growth and metabolism, allowing the immune system to destroy foreign pathogens.

C. White blood cells that fight infections are transported throughout the body by the circulatory system.

D. The circulatory system returns oxygen-poor blood back to the lungs, where the immune system adds oxygen, making it oxygen-rich.