Consumer packaged goods companies such as Procter & Gamble rely on supermarket purchasing data compiled by companies such as SymphonyIRI to understand how their products are selling, in what quantities, and in which package sizes. In addition, they can obtain data about price points, whether consumers utilized coupons, or information about other in$-$store sales promotions. SymphonyIRI provides $\_\_\_\_\_\_\_$ data to consumer goods manufacturers.

a$.$ primary

b$.$ qualitative

c$.$ disaggregated

d$.$ scanner$-$based research