Answer:
The correct answer is - d. Hormones interact with any cells in contact with the bloodstream.
Explanation:
Hormones are nothing but chemical substances that affect the activity of the target site or cells that are specific to the cells. Target sites are present in various parts of the body.
Hormones act as messengers that perform controlling and coordinating activities throughout the body. Hormones interact with their specific receptors present on the surface or in the target site.