The correct answer is C. Overgeneralization.
Step-by-step explanation
The fallacy of overgeneralization is a type of fallacy that is characterized by hastily establishing a consequence of a fact without logically reasoning about it. For example, the sentence in the question is a fallacy of overgeneralization because establishing how will be a person's day only for consuming a product in the morning lacks reasoning and evidence. This fallacy as in this example is widely used by industries to get the attention of buyers offering them some good effect just by using the products they sell. So, the correct answer is C. Overgeneralization.