Maria, the marketing manager at Jack and Jill, is running a campaign for a line of baby strollers. She bids on the phrase, 'strollers for babies'. Which targeting method is she using?

Maria is using keyword targeting because she is bidding on a specific search term, "strollers for babies," that customers might use when looking for her products. This method allows her ads to appear when a shopper's search query matches her chosen keywords. Product targeting, on the other hand, involves targeting specific products, categories, brands, or ASINs, rather than search terms.