Refer to the Given Map $\frac { 1 } { 8 }$

Multiple Choice

Refer to the given map. Assume that the length of each east-west block is $\frac { 1 } { 8 }$ mile and the length of each north-southblock is $\frac { 1 } { 4 }$ mile.
-Find the straight-line distance between the grocery store and the library.

A) 0.75 mi
B) 0.63 mi
C) 0.48 mi
D) 0.56 mi