Each of the sections on most topographic maps is numbered in red and outlined in red or, occasionally, dashed black lines. Find Section $9$, located near the center of the map, and measure its width and length in miles, using the bar scale provided.
Sections are __ mile(s) wide and __ miles(s) deep.
a. 2 miles wide and 3 miles deep
b. 5 miles wide and 2 miles deep
c. 3 miles wide and 4 miles deep
d. 4 miles wide and 5 miles deep