A body is kept on a rough horizontal surface of angle of friction `'alpha'` and moved by applying a force of magnitude 'F' making angle `'theta'` with horizontal. Arrange the following cases in the order of increasing magnitude for F.
(i) F is pulling force and `theta = alpha`
(ii) F is pulling force and `theta = 0`
(iii) F is pulling force and `alpha = theta = 0`
(iv) F is pushing force and `theta = alpha`

Options

A. iv, iii, ii and i
B. i, ii, iii and iv
C. i, ii, iv and iii
D. iii, i, ii and iv

Answer

D