The Equations X(t) = , Y(t) = $\le$ T $\le$ 1 Are the Parametric Equations of
A) the Whole Circle

Multiple Choice

The equations x(t) = , y(t) = , -1 $\le$ t $\le$ 1 are the parametric equations of

A) the whole circle centred at (0 , 0) and is of radius 1 unit
B) the left half of the circle centred at (0 , 0) and is of radius 1 unit
C) the bottom half of the circle centred at (0 , 0) and is of radius 1 unit
D) the top half of the circle centred at (0 , 0) and is of radius 1 unit
E) the right half of the circle centred at (0 , 0) and is of radius 1 unit