Kinematics

The x and y co-ordinate of the moving body are x=3t²and y=5t²
(A)velocity of the body is making angle tan^-153 with +ve x-axis
(B)the angle between velocity and acceleration is 0^o
(C)the path followed by the body is a straight line
(D)the body is moving along circular path
(this is a multiple correct answer question....i am getting (a) and (b) as the correct answer.....but my answer is wrong!!!!!)