There is a vaccine available to prevent infection of most strains of which sti? herpes hiv/aids hpv syphilis

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

Thinking about and listing ones options in the process of decision-making include all of the following except a. identifying possible alternative outcomes b. predicting what friends will think c. determining what is most important d. thinking about what choices could be made

What are the two things that all sociologists do in their studies?