Anna is a competitive runner. she wants to improve her performance and decides to keep track of data for six months to determine if the time of day or year she runs affects her performance. her worksheet contains the following data: start and end time, total time, and distance. after three months, anna wants to the know the average distance she runs. what should she do to calculate the average distance? a. enter the text =av in a cell at the end of the distance data; then select the average function from the formula autocomplete list and then enter the function’s argument. c. enter the text =function in a cell at the end of the distance data; then select the average function from the autofunction list and then enter the function’s argument. b. enter the text =ms in a cell at the end of the distance data; then select the max function from the formula autocomplete list and then enter the function’s argument. d. enter the text =su at the end of the data in the distance column; then select the sum function from the select function list and then enter the function’s argument.