According to Market-Area Analysis, What Is the Fundamental Error of Weber's

According to market-area analysis, what is the fundamental error of Weber's least-cost theory?

A) Exclusion of any consideration of raw materials
B) Assumption that industrialists seek the lowest-cost location
C) Failure to recognize that industrialists are making decisions in a climate of economic uncertainty
D) Failure to recognize that industrialists seek lowest-cost locations
E) Failure to consider that the factors affecting industrial location are always changing