Canon wants to measure if a proposed advertising message will be effective in generating interest in purchasing their photocopiers. They contact marketing research firm InsightExpress, which has a service of testing an ad copy. The ad is shown to 300 small businesses and the respondents complete the one-time survey evaluating the ad. The results are then given to Canon. This is an example of which of the following? Question 28 options: 1) Cross-sectional research. 2) Exhaustive research. 3) Focus group. 4) Longitudinal research. 5) Experimental research.