The Number of Vehicles Passing Through a Bank Drive -Up $$\begin{array} { l l l l } 25 & 27 & 25 & 28 \\28 & 25 & 30 & 27 \\35 & 31 & 31 & 29 \\24 & 31 & 25 & 20 \\15 & 27 & 27 & 27\end{array}$$

Multiple Choice

The number of vehicles passing through a bank drive -up line during each 15-minute period was recorded. The results are shown below. Find the median number of vehicles going through the line in a 15-minute period. $$\begin{array} { l l l l } 25 & 27 & 25 & 28 \\28 & 25 & 30 & 27 \\35 & 31 & 31 & 29 \\24 & 31 & 25 & 20 \\15 & 27 & 27 & 27\end{array}$$

A) 26.85 vehicles
B) 27 vehicles
C) 28 vehicles
D) 31 vehicles