Find the Function $y = - \sqrt { x + 3 } + 4$

Multiple Choice

Find the function.
-Find the function that is finally graphed after the following transformations are applied to the graph of y =x. The graph is shifted up 4 units, reflected about the y-axis, and finally shifted left 3 units.

A) $y = - \sqrt { x + 3 } + 4$
B) $y = \sqrt { - x + 3 } - 4$
C) $y = \sqrt { - x - 3 } + 4$
D) $y = \sqrt { - x - 3 } - 4$