Find a parametrization of the circle of radius 3, which lies in a plane parallel to the xy-plane, and which is centered at the point (0, 0, 2).
a)x=3+sint, y=3+cost, z=2
b)x=3cost, y=3sint, z=2
c)x=3cost, y = 3 cost, z = 2.
d)x=2+3sint, y=-3cost, z=0.