Which Transformation Was Not Performed on Y=\sin X $y=-2 \sin \left(3 x+\frac{\pi}{3}\right) ?$

Multiple Choice

Which transformation was not performed on y=\sin x to obtain $y=-2 \sin \left(3 x+\frac{\pi}{3}\right) ?$

A) $\text { Horizontal shift left } \frac{\pi}{9} \text { units }$
B) Horizontal stretch by a factor of 3
C) Vertical stretch by a factor of 2
D) Reflection through the x -axis
E) $\text { Horizontal shrink by a factor of } \frac{1}{3}$