You must draw a plotting sheet covering latitudes 45°N to 49°N and longitudes 179°E to 178°W. If the distance between latitude 45°N to 49°N is 20 inches, what is the distance between the meridians of 1° of longitude?

A
2.9 inches
B
3.2 inches
C
3.4 inches
D
3.7 inches
E