The first steps would be to put the numbers in order:
7, 7, 8, 9, 9, 10, 10, 11, 12, 13, 14, 14, 27
Now you can see the outlier(s) which would be 27.
Now that you know your one outlier that eliminates two of the answers so your options are either A or C.
Since the outlier is a bigger number, the answer is:
C. There is one outlier that indicates an unusually large number of cars were in the parking lot that day.

