‘R’ will be the first part of the given sequence as per the subject-verb agreement rule, that is, ‘dentist extracted’. ‘Q’ will follow next as it talks about the location where Manish’s tooth was extracted. P will follow Q as it provides the reason why Manish’s tooth was extracted. S will obviously be the last part of the sentence. Hence, RQPS is the right sequence. Thus, option (d) is correct.