Answer: C
Step-by-step explanation:
Median is not accurate, and mode isn't either. 26 and 71 are kind of far apart, but not too far, and there are two 71s. This makes the average an accurate representation.
A is best represented by median, since the numbers have such a small range.
B and D each have one number that's an outlier, so the average wouldn't accurately represent it.
Hope this helps!