In 2010, there was an interesting lawsuit about bagels. a company claimed to have created a new way to re-create "brooklyn style" bagels and then reported that another bagel producer had stolen its recipe. a researcher wonders if bagel sales might have been affected simply by the fact of the story making the national news, so she tracks total bagel sales in dollars for one year before and after the news story hits. what type of variable is total bagel sales?

Nominal variable

Explanation:

The nominal variable is the type of variable in which it contains two or more categories but there is no particular order to classify them

For example: gender i.e. male and female

So as per the given situation since it is mentioned that the total bagel sales prior to one year and after when the new story hits so here the total bagel sales represent the nominal variable

So the same is relevant

answer; i believe the correct answer is (sales promotion;