For the following list of data, calculate (a) the mean, (b) the median, and (c) the mode or modes (if any). 123, 125, 137, 121, 137, 126 0 (a) The mean is . (Round to the nearest tenth as needed.) (b) The median is Select the correct choice below and fill in any answer boxes within your choice. O A. The mode(s) is/are .(Use a comma to separate answers as needed.) O B. There is no mode