‘P’ will be the first part of the given sequence as per the subjectverb agreement rule. ‘S’ will come next as the relative pronoun ‘who’ is used in the context of ‘the injured’ mentioned in the very previous part. Q will follow next because it tells that how the injured got trampled, that is, by the surging crowd. R will be the last part of the given order which says that among the injured, women and children were also included. Hence, PSQR is the right sequence. Thus, option (d) is correct.