Answer:
The correct answer is letter "E": household demographics.
Explanation:
Information Resources, Incorporated (IRI) is a company that provides consumers, shoppers, and retailers analysis based on packaged purchases. IRI is worldwide well-known for its InfoScan Review which semiannually provides the most relevant information on consumer markets. IRI's infoscan tracks product bar codes to determine the goods' number of sales or coupons and free samples redemptions.
Thus, household demographics are not tracked with IRI's infoscan system.