Match the Function $y = \frac { 3 } { 1 + e ^ { - 2 x } }$

Multiple Choice

Match the function $y = \frac { 3 } { 1 + e ^ { - 2 x } }$ with its graph.
Graph I:

Graph II:

Graph III:

Graph IV:

Graph V:

A) Graph III
B) Graph V
C) Graph IV
D) Graph I
E) Graph II