How are Shopping ads created?

The correct answer is:

• The campaign and bid settings in Merchant Center helps Google’s system determine which ad will show for a user’s search query.
• Keywords in Google Ads help Google’s system determine which ad will show for a user’s search query.
• The product information in Merchant Center and the bid set in Google Ads helps Google’s system determine which ad will show for a user’s search query.
• Keywords in Google Ads and the bid set in Merchant Center helps Google’s system determine which ad will show for a user’s search query.