Answer:
The correct answer is option C. "White blood cells from the lymph and immune systems travel through blood vessels".
Explanation:
The functions of the body are divided into different systems, which most of the time interact with each other to perform complicated processes. For instance, the immune system interact with the cardiovascular system upon an infection when white blood cells from the lymph and immune systems travel through blood vessels. Once the pathogens reach the lymph nodes they are filtered, acting as a barrier to isolate the infection where the white blood cells can attack.
