Which statement explains how to calculate the mean of a set of data? O A. Subtract the smallest from the largest value. O B. Add the largest and the smallest values and divide by 2. O C. Find the sum of all the values and then divide by the number of values. O D. Organize the data from least to greatest and find the value in the middle. O E. Organize the data from least to greatest and identify which value is repeated the most often.​