Directions: Each of the following items in this section consists of a sentence, parts of which have been jumbled. These parts have been labelled as P, Q, R and S. Given below each sentence has four sequences, namely (a), (b), (c) and (d). You are required to re-arrange the jumbled parts of the sentence and mark your response accordingly.

The ancient Egyptians built pyramids as tombs (P)/ which was a complex process (Q)/ involving manual labor and early engineering techniques (R)/ for their pharaohs and their queens (S).