Change the Cartesian Integral to an Equivalent Polar Integral, and Then

Multiple Choice

Change the Cartesian integral to an equivalent polar integral, and then evaluate.
- $$\int _ { 0 } ^ { \ln 4 } \int _ { 0 } ^ { \sqrt { ( \ln 4 ) ^ { 2 } - y ^ { 2 } } } e \sqrt { x ^ { 2 } + y ^ { 2 } } d x d y$$

A) $\frac { \pi ( 4 \ln 4 + 3 ) } { 2 }$
B) $\frac { \pi ( 4 \ln 4 + 3 ) } { 4 }$
C) $\frac { \pi ( 4 \ln 4 - 3 ) } { 4 }$
D) $\frac { \pi ( 4 \ln 4 - 3 ) } { 2 }$