Formerly, Wikipedia was an untrustworthy source, for people could just post anything they knew. But now, it is a much safer source thanks to data processors. Whenever something is posted, it will then be processed and be considered thoroughly before being published publicly.
Hope this would help~
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.
90% of babies diagnosed with botulism in the states are under the age of 6 months