Coke is planning on marketing a new drink called Very Berry Coke which is a mixture of raspberry and blackberry flavors blended to perfection and added to the highly secret Coca$-$Cola formula. This new product is expected to reduce the sales of their existing product, Cherry Coke, by $$10$ million per year. This is an example of a$($n$)$

Multiple Choice

pro forma effect.

complementary effect.

substitutionary effect.

opportunity effect.