Direction: 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. You are required to re-arrange the jumbled parts of the sentence and mark your responses.

and (P)/ in a well-ventilated space (Q)/ ​it is always better to keep the refrigerator (R)/ not in a closed cavity (S)