‘S’ will be the first part of the given sequence as it is in continuation with the given sentence which is clearly indicated from the use of words, ‘former’ and ‘latter’. ‘Q’ will come next as it is in contrast to S1, that is, ‘For the right for power must, if it is to be useful, be accompanied by the ability to exercise it with competence, wisdom, foresight and broad mindedness’. ‘P’ will come next as it is in continuation with the previous statements which is indicated from the words, ‘These qualities are very rare and cannot be had for the wishing’. ‘R’ will follow logically as it is in contrast to the previous statement which is indicated from the word, ‘yet’. Hence, SQPR is the correct sequence. Thus, option (b) is correct.