The correct answer is: volunteering at a food bank.
A good example of a teen showing responsibility to the community is by volunteering at a food bank. This shows that the teen is actively involved in helping those in need and contributing to the well-being of the community. To find the answer to this multiple-choice question, you should carefully read and analyze each response option. In this case, the options can be easily assessed based on the actions described. Vandalizing playground equipment is an example of irresponsible behavior, while helping a friend with homework and folding the family's laundry may demonstrate responsibility, but not necessarily towards the community. Therefore, volunteering at a food bank is the most appropriate choice.