‘R’ will be the first part of the given sequence as it pairs with S1 because it furthers the talks about the miseries by saying that till the man’s nature won’t change, physical needs will arise which in turn keep the fell of miseries in an ongoing state. ‘Q’ will come next as the pronoun ‘them’ refers to ‘miseries’ mentioned in the very previous part. ‘S’ will come next as it is talking about the only solution to remove miseries which is to make man enlightened. ‘P’ furthers the statement mentioned in ‘S’, that is making the men ‘strong and educated’. Hence, RQSP is the right sequence. Thus, option (b) is correct.