Find the Value of B That Would Cause the Graph $b = \frac { 1 } { e ^ { 3 } }$

Multiple Choice

Find the value of b that would cause the graph of y = b^x to look like the graph below.​ ​

A) $b = \frac { 1 } { e ^ { 3 } }$
B) $b = e ^ { 3 }$
C) $b = e$
D) $b = \frac { 1 } { e }$
E) $b = e ^ { 2 }$