Which is the parametric form of the polar equation r=-3θ

A. x = 3θ cos θ
y = 3θ sin θ
B. x = -3θ cos θ
y = -3θ sin θ
C. x = 3 cos θ
y = -3 sin θ
D. x = -θ cos θ
y = -θ sin θ

B. x = -3θ cos θ

y = -3θ sin θ