Each of the following items in this section consists of a sentence, the parts of which have been jumbled. These parts have been labelled as P, Q, R and S. Each sentence is followed by four sequences, namely (a), (b), (c) and (d), indicating the rearrangement of the parts. You are required to select the most appropriate option and mark your response on the Answer Sheet accordingly.
Researchers
P. found that allergic reactions are brought about
Q. in the bloodstream
R. in the 1940s
S. by the liberation of small quantities of a substance called histamine
- ARPSQ
- BQRPS
- CRQSP
- DPSQR
Explanation
‘R’ will be the first part of the given sequence as ‘Researchers in the 1940s makes a logical phrase together. ‘P’ will follow next as it tells the discovery done by the researchers, that is, the research about the “allergic reactions”. ‘S’ will come next as it states the reason of ‘allergic reactions’, that is, they are brought about by the liberation of ‘histamine’. ‘Q’ will be the last part of the given sequence as it states the place of liberation, that is, in the bloodstream. Hence, RPSQ is the correct sequence. Thus, option (a) is correct.