I do not understand the answer provided for iii) in examiners report. Hope that someone can guide me step-by-step.
September 2014 Q3 doesn't have a part (iii) Jia, can you check which question you're talking about please? Also, your post is rather vague, so you're unlikely to get a response. What sentence of the Examiners' Report do you not understand? If you need help with the entire solution, I would recommend you look at our ActEd products. The ASET and revision booklets will help you for queries of this sort.