Answer: Choice C
It is more affected by extreme values than the arithmetic mean
Step-by-step explanation
The median is not affected by outliers. In fact, whenever there are outliers, the median is the better measures of center. For instance, housing prices use the median home value because some multi-million dollar mansions positively skew the distribution. These few and large outliers pull on the mean to make it larger than it should be. On the other hand, the median is not affected by this pull.
This is why choice C is a false statement, and it's the final answer.
Choices A, B, and D are true statements. This allows us to rule them out.