A furniture store owner is creating her first AdWords campaign. What’s the best way to group her products?

A furniture store owner is creating her first AdWords campaign. What’s the best way to group her products?

§  Separate them in ad groups with themes like sofa beds, king-size beds, and queen-size beds
§  Separate them in ad groups based on what she thinks will sell best on the Search vs. the Display Network
§  Group them in a single ad group

§  Create a new campaign for every bed she sells in her store