Find parametric equations and a parameter interval for the motion of a particle that starts at $(0,-a)$ and traces the circle $x^2{y}^2=a^2$

a$.$ once clockwise.

b$.$ once counterclockwise.

c$.$ three times clockwise.

d$.$ three times counterclockwise.

a$.$ Which of the following sets of equations could trace the circle $x^2{y}^2=a^2$ once clockwise, starting at $(0,-a)?$

A$.x=-$asint,$y=-$acost,$0t2$

B$.x=-$acost,$y=$asint,$0t2$

C$.x=$acost,$y=-$asint,$0t2$

D$.x=$asint,$y=$acost,$0t2$

b$.$ Which of the following sets of equations could trace the circle $x^2{y}^2=a^2$ once counterclockwise, starting at $(0,-a)?$

A$.x=$asint,$y=-$acost,$0t2$

B$.x=$acost,$y=$asint,$0t2$

C$.x=-$acost,$y=-$asint,$0t2$

D$.x=-$asint,$y=$acost,$0t2$

Find parametric equations and a parameter interval for the motion of a particle that starts at $(0,-a)$ and traces the circle $x^2{y}^2=a^2$

a$.$ once clockwise.

b$.$ once counterclockwise.

c$.$ three times clockwise.

d$.$ three times counterclockwise.

c$.$ Which of the following sets of equations could trace the circle $x^2{y}^2=a^2$ three times clockwise, starting at $(0,-a)?$

A$.x=-$asint,$y=-$acost,$0t6$

B$.x=-$asint,$y=-$acost,$0t8$

C$.x=$asint,$y=$acost,$0t2$

D$.x=-$acost,$y=$asint,$0t4$

d$.$ Which of the following sets of equations could trace the circle $x^2{y}^2=a^2$ three times counterclockwise, starting at $(0,-a)?$

A$.x=-$acost,$y=-$asint,$0t4$

B$.x=$asint,$y=-$acost,$0t8$

C$.x=-$asint,$y=$acost,$0t2$

D$.x=$asint,$y=-$acost,$0t6$