Please choose the correct ending to complete the given sentence: Rollerblading: A group of people is learning how to rollerblade. some peeople

Ending1: afterwards stand on the handlebars and do a hand stand. Ending2: go in groups, but generally they are slow and awkward. Ending3: are rollerblading in street and. Ending4: a woman bang her head.

Answer format: ending1/ending2/ending3/ending4