Your answer is, the number of games each player has played
Generally to measure variability, we use the range, the variance, the standard deviation and inter quartile ranges.
Given is that the averages are same, this implies that the mean of the two data sets are same. Variability can also be measured by the total number of points each player has scored. It can also be determined by the average number of points each player’s team scores per game.
So, correct answer is option B: the number of games each player has played.
Sure hope this helps