The "Security Dilemma" Refers to a Situation in Which

The "security dilemma" refers to a situation in which

A) all states can achieve security, but only after making tough choices.
B) one state's becoming more secure diminishes another state's security.
C) states intentionally threaten each other even if they feel secure.
D) each state must rely on security agreements with neighboring states.
E) no state is seen as a threat to another, even after taking security measures.