Which of the following will be the FIRST sentence after rearrangement?

Directions : A set of sentences is given, which when properly sequenced, form a coherent paragraph. Arrange the sentences in the correct sequence, and answer the questions. P. Thus, it is rational to assume that the carbon tax policy is likely to be met with a backlash if it gets adopted in Asian economies. Q. As some of the world's largest carbon emitters, the major emerging Asian economies have been under pressure in international climate change forums to adopt carbon pricing. R. Asian energy planners, however, are not likely to be encouraged by the experience of carbon tax legislation in a number of countries in the West which have been at the forefront of "decarbonizing". S. Many voters in the developed countries have become increasingly resentful of expensive climate change policies predicated on model-based projections of impending environmental catastrophe. T. There is no reason to believe that the average Asian citizen, generally poorer than his Western counterpart, will be any less opposed to policies which increase energy prices in his household budget.