Medication that increases urination

What is the term for a code that should be used as a last resort?

a. Nonspecific b. Ending c. Last resort code d. Minor

In the information on terrorism it is noted that

A. terrorists are regularly arrested at sport events in the U.S. B. since 9/11/2001, security at sport events has actually decreased. C. sports can't be separated from aspects of social life that inspire terrorism. D. there has never been a case of terrorism at a major sport event.