Kaylee's Customers Seem to Be Buying Less of Her Freshly

Kaylee's customers seem to be buying less of her freshly baked breads and more of her yogurt parfaits and coffees. She begins to ask customers at the checkout why they made their selection. She learns that many of her customers are choosing a gluten-free diet. She changes her breads and now is selling gluten-free breads and most days sells out. Kaylee used

A) feedback.
B) input.
C) output.
D) a transformational process.
E) complexity theory.