Answer:
a) product; person or household.
Explanation:
Scanner research typically focuses on product because is a system that continuously monitors the advertising, promotion, and pricing of things. So is more of a market based research in a way.
Panel research, however, focuses on a person or household, because is a method for collecting their data repeatedly, like demographic, behavioral data, in order to help conducting future studies easier.
Shifting cultivation is an agricultural system in which plot of land are cultivated temporarily, then abandoned while post-disturbance fallow vegetation is allowed to freely grow while the cultivator moves on to another plot.
Chile<span> is among one of many countries facing dangerous </span>earthquakes<span> because it is located on active seismic zones named The Ring of Fire.</span>
