Democratic presidential candidates were asked one very important question last night at the Rock the Vote debate in Boston: Mac or PC? Of those that answered the audience question, Former Vermont Governor Howard Dean said PC, Former U.S. Senator Carol Moseley Braun said PC, and U.S. REP. Dennis Kucinich also said PC. The only candidate that said he uses a Mac was the reverend Al Sharpton. U.S. Senator Joe Lieberman said he uses a wireless handheld, while the other three candidates didn’t respond.