The Frequency Polygon in the Below Figure Shows the Approximate $\frac { 1 } { 2 }$

Multiple Choice

The frequency polygon in the below Figure shows the approximate numbers of runners in the 2008 Boston Marathon to finish in each of the given time slots (times are given in hours and minutes) . Use the following figure. Determine the approximate number of runners who finished with times between 2 $\frac { 1 } { 2 }$ hours and 6 hours.

A) 23,000 runners
B) 22,000 runners
C) 21,000 runners
D) 24,000 runners
E) 20,000 runners