According to the Imperfect-Information Model, in Countries in Which There

According to the imperfect-information model, in countries in which there is a great deal of variability of prices:

A) the response of output to unexpected changes in prices will be relatively large.
B) the response of output to unexpected changes in prices will be relatively small.
C) output will respond negatively to an unexpected rise in prices.
D) output will not respond to an unexpected change in prices.