Which sentence contains an error in the use of dashes? a. none of us had expected the governor—he's larry's uncle, to be there. b. some foods—for instance, egg rolls, tacos, and spaghetti—make one feel quite cosmopolitan. c. i have so much to tell you—oh, no, here comes the bus. d. unfortunately, the film—it was european and had subtitles—was in black and white!