A product team at Proctor & Gamble is developing a research plan to investigate the next product

opportunity in household cleaning products. Currently, it plans to use research collected from when it

developed the Swiffer Wet Jet in $2001,$ a survey study conducted by the Household & Commercial

Products Association, and qualitative research conducted earlier this year by the American Cleaning

Institute, along with $2020$ U$.$S$.$ Census data scheduled to be published later this year. Which of the

following did they use?

neither Primary nor Secondary Data

Primary Data only

both Primary and Secondary Data

Secondary Data only