Which sentence is correctly punctuated? the observatory theater has three weekday showings, 11: 00 a. m., 1: 00 p. m., and 3: 00 p. m. the observatory theater has three weekday showings: 11.00 a. m., 1.00 p. m., and 3.00 p. m. the observatory theater has three weekday showings—11: 00 a. m., 1: 00 p. m., and 3: 00 p. m. the observatory theater has three weekday showings—11.00 a. m., 1.00 p. m., and 3.00 p. m.