Describe the transformations that when applied to the graph of y = sinx result in the graph shown. X O a) a vertical stretch by a factor of 1.5 and a phase shift of - rad to the right O b) a reflection in the x-axis and a phase shift of - rad to the left Oc) a vertical stretch by a factor of 1.5 and a phase shift of - rad to the left O d) a reflection in the x-axis and a phase shift of ~ rad to the right