The Parametric Equations of the Line Segment from (1,0) to (0,1)

Multiple Choice

The parametric equations of the line segment from (1,0) to (0,1) with t $\in$ [0,1] are

A) $x ( t ) = t , y ( t ) = 1 - t$
B) $x ( t ) = t , y ( t ) = t - 1$
C) $x ( t ) = 1 - t , y ( t ) = t$
D) $x ( t ) = t - 1 , y ( t ) = t$
E) $x ( t ) = t - 1 , y ( t ) = 1 - t$