An advertiser is focused primarily on direct response, as opposed to branding. The advertiser should delete keywords from a search campaign if the keywords:

An advertiser is focused primarily on direct response, as opposed to branding. The advertiser should delete keywords from a search campaign if the keywords:
A) contain more than two words in the phrase.
B) contain words that are duplicated in a display campaign.
C) generate many clicks and conversions.
D) generate many impressions and very few conversions.

Answer: D