Four Tires Can Be Replaced on a Car In $\frac { 3 } { 4 }$

Multiple Choice

Four tires can be replaced on a car in $\frac { 3 } { 4 }$ of an hour. If $19$ cars needed their tires changed, how long would it take?

A) $11 \frac { 1 } { 4 }$ hours
B) $15 \frac { 1 } { 4 }$ hours
C) $14 \frac { 1 } { 4 }$ hours
D) $16 \frac { 1 } { 4 }$ hours
E) $9 \frac { 1 } { 4 }$ hours