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 are 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.

(P) including dolphins, whales, and octopuses / (Q) a variety of strange and interesting creatures can be found / (R) in the depths of the ocean, / (S) which have adapted to life in the underwater world.