Which scenario best represents the relationship between categorization approach and expertise in a given area?

(1)Every swim class student, regardless of expertise, is put into the same class.

(2)An experienced grocery bagger hurt his arm and can no longer bag groceries as quickly, so a more novice bagger jumps in to help.

(3)A mother of four children finds that she scolds her children just as often as another mother of just one child.

(4)An experienced barista at a coffee shop can distinguish between different coffee beans based on their aroma alone, whereas a novice barista thinks all coffee beans smell relatively similar.