Select the correct statements.
(i) A simple harmonic motion is necessarily periodic
(ii) A simple harmonic motion is necessarily oscillatory
(iii) An oscillatory motion is necessarily periodic
(iv) A periodic motion is necessarily oscillatory

Options

A. (i) and (ii)
B. (i), (ii) and (iii)
C. (iii) and (iv)
D. all of the above

Answer

B