Each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet. S1 :The Nobel Prize for Economics in 2018 was awarded to Paul Romer and William Nordhaus for their work in two separate areas : economic growth and environmental economics respectively. S6 :Among recent winners of Nobel Prize in Economics, it’s hard to think of one issue which is more topical and relevant to India. P :But there is a common thread in their work. Q : In economic jargon it’s termed as externality. R : Productive activity often has spillovers, meaning that it can impact an unrelated party. S :Romer and Nordhaus both studied the impact of externalities and came up with profound insights and economic models. The correct sequence should be

• P Q R S
• P R Q S
• Q S P R
• Q S R P