Question

An object is in motion when
a.
you observe the object move.
b.
the object’s speed increases.
c.
the object’s displacement is greater than the distance traveled.
d.
the object changes position relative to a stationary reference point.

Answer 1

???

Answer 2

strictly speaking, both a and d are correct and mean the same thing (because we say that motion is relative. IF you don't know what that means, forget that i ever said that.)
But if I had to choose one, I'd go with D.

Answer 3

k