Concept:The sentence parts must be rearranged to form a logical and grammatically correct sequence.
Explanation:The jumbled parts are:
P: must support the main part
Q: the beginning and the concluding lines
R: described in the story
S: or the events
Part Q introduces the subject, so it comes first.
Part P follows Q to complete the predicate.
Part S adds an alternative, so it comes third.
Part R ends the sentence by specifying what is described.
Thus the correct order is Q, P, S, R — which corresponds to option (b) QPSR.
Answer:Option B (QPSR)