Nuclear, chemical, and biological weapons are sometimes grouped together and called ______.

What distinguishes generational effects from period effects?

a. Generational effects exert an influence on the attitudes and beliefs of the younger generations of a population; period effects exert an influence on the attitudes and beliefs of all generations in a population. b. Generational effects exert an influence on the attitudes and beliefs of all generations in a population; period effects exert an influence on the attitudes and beliefs of the younger generations of a population. c. Generational effects exert an influence on the attitudes and beliefs of people as they age; period effects exert an influence on the attitudes and beliefs of all generations in a population d. Generational effects exert an influence on the attitudes and beliefs of the younger generations of a population; period effects exert an influence on the attitudes and beliefs of people as they age. e. Generational effects exert an influence on the attitudes and beliefs of people as they move from life-cycle role to life-cycle role; period effects exert an influence on the attitudes and beliefs of people as they age.

In international relations, the security dilemma refers to

a. the problems of implementing collective security. b. how security communities manage to escape the insecurities of international anarchy. c. the difficulty of making one nation secure without making others feel less secure. d. how unsatisfied (revisionist) states overcome the power of the hegemonic state.