Find Two Sets of Parametric Equations for the Given Rectangular $$y = x ^ { 2 } - 4$$

Multiple Choice

Find two sets of parametric equations for the given rectangular equation.
- $$y = x ^ { 2 } - 4$$

A) $x = t , y = t ^ { 2 } - 4 ; x = \sqrt { t } , y = t - 4 , t \geq 0$
B) $x = t , y = t ^ { 2 } - 4 ; x = \sqrt { t } , y = t + 4 , t \geq 0$
C) $x = - t , y = t ^ { 2 } + 4 ; x = \sqrt { t } , y = t - 4$
D) $x = - t , y = t ^ { 2 } - 4 ; x = \sqrt { t } , y = - t + 4 , t \geq 0$