Which of the Following Parametrize the Circle $\theta$ ) I + (2 + 2 Sin

Multiple Choice

Which of the following parametrize the circle + - 4y = 0 with clockwise orientation?
(a) r = (2 cos $\theta$ ) i + (2 + 2 sin $\theta$ ) j
(b) r = (2 cos $\theta$ ) i - (2 + 2 sin $\theta$ ) j
(c) r = (2 cos $\theta$ ) i + (2 - 2 sin $\theta$ ) j
(d) r = (2 sin $\theta$ ) i + (2 + 2 cos $\theta$ ) j

A) only (a)
B) only (b)
C) only (c)
D) only (d)
E) both (a) and (b)
F) both (c) and (d)
G) none of the above