What makes this a collection?

Museum curators have the job of choosing objects to put in exhibits. Help us complete each collection so that it is ready for display. Look carefully at the objects on the left. Then select three objects from the group on the right to finish the collection. Drag and drop the photos onto the “?” to add them to the collection. When you’ve made your choices, press the “check my collection” button to see how you did.

Collection #3

Choose from: