Directions :In this Section 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