Which would be a sound argument for the proposition that a community should sponsor a riverfront clean-up day?
1) I need more community service hours for graduation, and a clean-up day is less boring than the currently available options
2) My Government teacher said that I had to come up with a proposal to put before the city council, and this is my proposal
3) A clean-up day would bring the community together on a project that will reduce pollution and beautify the parks
4) The OHIO River is nearly 1,000 miles long from end to end, and that's more than one-third of the length of the Mississippi
