Which of the Following Functions Is Represented by the Graph $\arcsin \left( \frac { x - 1 } { 2 } \right) + \frac { \pi } { 4 }$

Multiple Choice

Which of the following functions is represented by the graph below?

A) $\arcsin \left( \frac { x - 1 } { 2 } \right) + \frac { \pi } { 4 }$
B) $2 \arccos ( x + 1 )$
C) $\arcsin ( 2 x )$
D) $\arccos \left( \frac { x + 1 } { 2 } \right)$
E) $2 \arcsin \frac { x } { 2 } - 1$