The text discusses the mechanisms of water balance regulation in the human body. Which of the following statements is true about the role of osmoreceptors in this process?

Osmoreceptors are cells that are more capable of detecting the conditions of the internal environment of the body.
Osmoreceptors are located in the skin and are responsible for regulating the loss of water through sweating.
Osmoreceptors are responsible for the production of antidiuretic hormone, which regulates the reabsorption of water by the kidneys.
Osmoreceptors are only activated in cases of hyperhydration.
a) I and II are correct.
b) II and III are correct.
c) III and IV are correct.
d) I and III are correct.