none of the above 47. Which of the following is a conditional function in Microsoft Excel? a. count0 c, -countblanko d. none of the above b. countifo 48. In an Microsoft Excel function, which is an invalid character? a. equal sign b. parentheses Which order can Microsoft Excel sort data in? space none of the above d. 49. ascending descending either a or b neither a or b a. c. b. d. 50. In order to sort data in Microsoft Excel, a must be provided. a. b. range cell c. sheet d. one of the above