Fine the correct statement out of the following:
(i) if acceleration = 0, motion is uniform.
(ii) if acceleration = constant, acceleration is uniform but motion not.
(iii) if acceleration $\ne$ constant, both acceleration and motion are not uniform.
(iv) if acceleration = constant, both acceleration and motion are uniform.

• A

  (i, ii, iii)

• B

  (ii, iii)

• C

  (i, iv)

• D

  (i, iii)