Few People Today Iron and Starch Their Own Shirts

Few people today iron and starch their own shirts. Even fewer want to use a product like boxed Argo dry starch, which allows the user to mix the starch so that shirts can be stiff enough to stand alone. But Argo still has a loyal band of users, so the manufacturer still produces the product but with little promotion and expectation of making a profit. From this description, you should know that this type of starch is in the _____ stage of its product life cycle.

A) pioneering
B) adoption
C) decline
D) diffusion
E) trickle-down