Which of the Following Lists Is in the Correct Order,based

Multiple Choice

Which of the following lists is in the correct order,based on the amount of effort consumers are willing to spend in searching for the "right" product,from little effort to much effort?

A) heterogeneous shopping products,specialty products,unsought products
B) convenience products,homogeneous shopping products,specialty products
C) unsought products,homogeneous shopping products,convenience products
D) staples,heterogeneous shopping products,unsought products
E) homogeneous shopping products,heterogeneous shopping products,staples