In recent years, the influence of Congress over foreign policy formation has steadily increased.

A probability sampling technique in which a researcher identifies naturally occurring clusters of individuals from a population to select from is called probability sampling

a. cluster b. simple c. systematic d. stratified

______ is the political philosophy that sees the struggle for power and the potential for conflict as a necessary evil in pursuit of national interest, while ______ is the political philosophy based on the democratic tradition that emphasizes the potential for cooperation among states.

Fill in the blank(s) with the appropriate word(s).