Find the Eccentricity of the Conic $$\frac { x ^ { 2 } } { 100 } + \frac { y ^ { 2 } } { 16 } = 1$$

Multiple Choice

Find the Eccentricity of the conic. $$\frac { x ^ { 2 } } { 100 } + \frac { y ^ { 2 } } { 16 } = 1$$

A)
Eccentricity: $e = \frac { \sqrt { 84 } } { 4 }$
B)
Eccentricity: $e = \frac { \sqrt { 100 } } { 4 }$
C)
Eccentricity: $e = \frac { \sqrt { 84 } } { 100 }$
D)
Eccentricity: $e = \frac { 4 \sqrt { 84 } } { 84 }$
E)
Eccentricity: $e = \frac { \sqrt { 84 } } { 10 }$