Use the Properties of Logarithms to Evaluate $\ln e ^ { 5 } - \ln e ^ { 4 }$

Multiple Choice

Use the properties of logarithms to evaluate $\ln e ^ { 5 } - \ln e ^ { 4 }$ without a calculator.

A) $\sqrt [ 4 ] { 5 }$
B) 9
C) 0
D) 1
E) $\frac { 4 } { 5 }$