The correct answer is B. cannibalization effect.
Cannibalization is a term used in business to describe
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Option C, external effect, is incorrect because it describes a situation in which a company’s sales are affected by factors outside of the company’s control, such as changes in the economy or the introduction of new products by competitors.
Option D, internal effect, is incorrect because it describes a situation in which a company’s sales are affected by factors within the company’s control, such as changes in marketing or pricing.