I'm no expert at all so don't take my word but number one looks like it will make the most sense. Because it has the word reproductive system and yeah...
Answer: Interferons
Explanation:
Interferons can be defined as the cells that is already being virus affected and they release some chemicals out of it in order to prepare the cells or to enhance the cells for anti-viral response.
The cells a group of signaling proteins which is being released by the host cells in response to the presence of virus in the body.
Chemically they are cytokine molecules which is used as a defense mechanism to protect the other cells of the body from being infected.
Certain response like fever, muscle pain are caused by the interferon.
Diabetes.
It happens that many people say it's diabetes, where the digestive system lacks something! I'm so sorry this answer is terrible!
Today more and more Americans indeed are seeking medical advice from the internet - A. The internet has become a very convenient source of cheap and abundant information for the average consumer which is also the reason why so many Americans are opting for this decision.