Suppose That Jane Enjoys Diet Coke So Much That She

Multiple Choice

Suppose that Jane enjoys Diet Coke so much that she consumes one can every day.Although she enjoys gourmet cheese,she consumes it sporadically.If the price of Diet Coke rises,Jane decreases her consumption by only a very small amount.But if the price of gourmet cheese rises,Jane decreases her consumption by a lot.These examples illustrate the importance of

A) the availability of close substitutes in determining the price elasticity of demand.
B) a necessity versus a luxury in determining the price elasticity of demand.
C) the definition of a market in determining the price elasticity of demand.
D) the time horizon in determining the price elasticity of demand.