Akira Takano, a marketing manager, is about to test his hypothesis that if the price of a particular product is increased by $5, unit sales will increase by 10 percent. Akira is involved in research.

a. causal

Explanation:

The causal research refers to the research in which there is an investigation or the research would depend upon the cause and effect relationship.

It is known as explanatory research.

According to the given case, since the price is increased by $5 and the unit sale is risen by $10 so here the Akira involved in Causal research and the same is to be considered

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