Concept:The sentence is a jumbled sequence of phrases (P, Q, R, S) that must be rearranged to form a grammatically correct and logical statement.
Explanation:Start by identifying the subject, which is “evidence of a crisis in party politics” (R).
Thus
R comes first.
The subject requires a verb phrase: “can be found” (Q).
So
Q follows
R:
RQ.
Next, the verb phrase is completed by two parallel objects joined by “as well as”.
The first object is “in the decline in party membership and partisanship” (P).
The second object is “in the rise of antiparty groups and movements” (S).
Since
P comes before
S (because “as well as” links them, and
P is the first part), the order is
P then
S.
Thus the full sequence is
RQPS.
Checking the options, this matches (a) RQPS.
Answer:RQPS (Option A)