Which Parametric Equations Describe a Spiral Beginning at the Origin $t \geq 0 ?$

Multiple Choice

Which parametric equations describe a spiral beginning at the origin for $t \geq 0 ?$

A) x=t cos t and y=t sin t
B) x=t sin t and y=t sin t
C) x=5 cos t and y=5 sin t
D) x=cos t and y=sin t
E) x=t and y=sin t