In the following question, the 1st and last sentences of the passage are numbered 1 and 6. The rest of the passage is split into four parts and named P, Q, R and S.  These four parts are not given in their proper order. Rearrange the sentences to form a coherent paragraph.   1. It is easy to criticise the people at the helm, for the slow progress in every field.   P. We are well aware that the intellectuals are leaving our country for better employment opportunities.   Q. The question remains unanswered because our country cannot show opportunities to the intellectuals.   R. Then, what about their obligation to the Motherland?   S. First, we should ask ourselves as to what is happening to the young intellectuals in India.   6. This situation of 'Brain drain' leads to a variety of problems.