Find the Eccentricity of the Conic Section Shown in the Graph

Multiple Choice

Find the eccentricity of the conic section shown in the graph.
- $$x = - \frac { 1 } { 2 }$$

A) $\mathrm { e } = 1$
B) $e = 2$
C) $\mathrm { e } = \frac { 1 } { 2 }$
D) $e = 3$