Histamines are chemicals released by the body as an allergic response.They help the body by reacting when their are "intruders" so when enters, histamine acts as a messenger and sends out a signal for the body to create a reaction helping to get rid of teh intruder through some type of reaction.
Secretary of defense is ahead but not a soldier in rank
In ranking its the general (which is the highest rank in the army)
No, it is impossible for it to produce the exact result