What is the term for the practice of creating ad groups with a small number of highly relevant keywords and ads?

What is the term for a set of keywords, ads, and bids that is used to manage a group of products in a Google Shopping campaign?

What is the term for the practice of creating multiple ads within an ad group to test different messaging and design elements?Ad Group SplittingA/B TestingKeyword SplittingMultivariate Testing

What is the term for the practice of promoting your video ads on YouTube by targeting specific keywords and demographics?

Anna is a commercial photographer.She’s setting up SEM campaigns to draw more traffic to her site. She needs to make sure her ads are relevant, and she’s doing this by creating ad groups for each type of product.Take a look at the ad below:Wedding photographyCapture your special day with beautiful photographsCall to book your date now!Can you help Anna by eliminating the keywords that wouldn’t be relevant to her ad?Select 4 Correct ResponsesBridal party photosCandid wedding photosBaby photoshootNewborn baby photographyProfessional website photos

What is the term for the practice of bidding more aggressively for ads that are performing well and reducing bids for underperforming ads?