The position of a particle moving in the xy-plane is given by the parametric equations x = t3 - 3t2 and y = 2t3 - 3t2 - 12t. For what values of t is the particle at rest?
A) 2 only
B) -1, 0, and 2 only
C) -1 and 2 only
D) 0 and 2 only