The rectilinear motion of a particle is described as: v = u + 2as where s is displacement, u is initial velocity, a is acceleration and v is the particle's velocity at displacement s. Determine which of the following statement is true: A. The particle's acceleration does not change with time. B. The particle is accelerating linearly with time. C. The particle is accelerating exponentially with time. D. The particle is decelerating linearly with time. The particle is decelerating exponentially with time.