Kathy's Son Started School and Brought Home the Supply List

Kathy's son started school and brought home the supply list.Among the required supplies were green ink pens.Kathy thought that finding boxes carrying only green pens would be difficult until her neighbour informed her that Staples carried packs of twelve.In turn,Kathy shared this information with yet another mother down the block who was also perplexed as to where to purchase the pens.Which of the following approaches should Staples use in defining its market segment?

A) Occupation
B) Family life cycle
C) Geographic
D) Benefit sought
E) Gender