‘R’ will be the first part of the given sequence as it is contrast tothe previous words which begin with ‘however’. ‘Q’ will follow nextas the verb needs to come as per subject-verb agreement, that is,‘are bound to end up’. ‘S’ will come next as it describes the pointmentioned in ‘Q’. ‘P’ will come at the end as it clarifies the condition that needs to be true for the sentence to make sense. Hence, RQSP is the correct sequence. Thus, option (b) is correct.