Please choose the correct ending to complete the given sentence: Rollerblading: Some of them are climbing stairs with their roller blades. Some men are rollerblading through a busy city and on bridges. there

Ending1: are pumpkins and brick buildings in the city plaza. Ending2: is a group of young children rollerblading together. Ending3: are several big stumblebees in a plant. Ending4: are a lot of people sticking their skis together on bridges.

Answer format: ending1/ending2/ending3/ending4