Aplane curve is defined by the following paramedic equation: x=2cos(t) y=sin(t) which of the following statements best describes the curve? a) the parameter is x and the curve contains the points y=sin(t) b) the parameter is y and the cube contains the points x=2cos(t) c) the parameter is t and the curve contains the set of points (2cos(t),sin(t)) d the parameter is t and the curve contains the points (sin(t),2cos(t))