If the inverse of implication `p rarr q` is defined as `~p rarr ~q`, then the inverse of the proposition `(p ^^ ~q) rarr r` is not equivalent to :
I : `~r rarr `p vv q`
II : `~p vv ~q rarr ~r`
III : `r rarr p ^^ ~q`
The true statements in the above are :

Options

A. I, II only
B. II, III only
C. I, III only
D. All the above

Answer

4