Concept:The task is to rearrange jumbled parts (P, Q, R, S) into a grammatically correct and meaningful sentence.
Explanation:First, identify the main subject and verb.
Part S ("a referendum is a vote") is the only part that can begin the sentence as it contains a subject and a linking verb.
Therefore, the sequence must start with S.
Next, look for a relative clause that describes "vote".
Part Q ("in which the electorate") is a relative clause that must immediately follow the noun "vote".
This gives the order S followed by Q.
After that, part P ("can express a view on") logically follows "the electorate", as it states what the electorate can do.
Finally, part R ("a particular issue of public policy") completes the phrase by stating what the view is expressed on.
Thus, the correct sequence is S, Q, P, R which is SQPR.
Checking the options: Only option C (SQPR) matches this order.
Answer:Option C (SQPR) is the correct arrangement. The complete sentence is: "a referendum is a vote in which the electorate can express a view on a particular issue of public policy."