The postion versus time graph of a body undergoing constant acceleration is

Under constant acceleration the position versus time equation is:

X = Xo + Vo*t + a * (t^2) /2
                              
Where:

Xo is the initial position
Vo is the initial velocity
t = time
a = acceleration

That equation is a second grade polynomial which is a parabola.

So the word that completes the statement is "parabola".

parabola

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.