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.

(P) in the 20th century / (Q) the development of the computer / (R) has transformed the way we work and access information / (S) and has had a profound impact on society