’P’ will be the first part of the given sequence as it states what was given by the mentioned person, that is, ‘old coat’. R will come next because it describes the ‘old coat’ mentioned in P. Q will follow next as it tells that she gave the coat to a beggar and then S will come which tells the condition of the beggar, that is, he was shivering with the cold. Hence, PRQS is the right sequence. Thus, option (a) is correct.