Which of the following statements is true about body system interactions? a. When someone drinks fluids, these fluids are absorbed into the blood stream (cardiovascular system) from the small intestines (digestive system).
b. When someone drinks fluids, the kidneys (urinary system) sends a message to the brain (nervous system) that more water needs to be released from the body.

c. When someone drinks fluids, these fluids are absorbed into the kidneys (urinary system) from the stomach (digestive system).
d. When someone drinks fluids, these fluids are transported directly to the kidneys (urinary system) by the blood stream (cardiovascular system) and go nowhere else in the body.