Solve
-On an Architect's Blueprint, 1 Inch Corresponds to 4 $12 \mathrm { in }$

Solve.
-On an architect's blueprint, 1 inch corresponds to 4 feet. If an exterior wall is 12 feet long, find how long the blueprint measurement should be. Write answer as a mixed number if necessary.

A) $12 \mathrm { in }$ .
B) $3 \frac { 1 } { 3 } \mathrm { in }$ .
C) $4 \mathrm { in }$ .
D) $3 \mathrm { in }$ .