A context free Grammar is said to be Greibach normal form if all the productions have the form
A $\rightarrow$ ax
where a∈ T and x∈ v*
(ii)Eliminate due to production $S\rightarrow AB$
(iii)Eliminate Due to production$S\rightarrow A$
only(1) Satisfying the required conditions.
Hence,Option(C)ii and (iii) is the correct choice.