answer is (D).. we can quickly observe here, in (i) "." is after *, that means it has just processed * input..
in (ii) "." is after F, it has just processed F.. in (iii) "." is after +.. that means it has just processed +..
So none these belong to the same canonical set of item.!! because "." comes either before all alphabet or just after the alphabet has just processed...
We don't have to draw whole list of canonical item to answer this 1 mark question.. :D