Which Method Would Be Recommended for an Advertiser Who Is

Multiple Choice

Which method would be recommended for an advertiser who is trying to increase the Quality Score of low keyword?

A) Modify the ad associated with that keyword to direct to a highly-relevant landing page.
B) Increase the daily budget for the campaign in which the keyword is located.
C) Delete the keyword and add the keyword to the campaign again.
D) Repeat the keyword as many times as possible in the ad text.