Concept:A jumbled sentence must be rearranged to form a logically coherent and grammatically correct statement.
Explanation:The sentence should begin with the subject: "she who has been in trouble" (S).
This is followed by the action or outcome: "would know the trouble" (R).
Next, a comparison is introduced: "better than the one" (Q).
Finally, the comparison is completed: "who has been troubling" (P).
Thus, the correct sequence is S, then R, then Q, then P, i.e., SRQP.
Other sequences break the logical flow or leave the subject unclear.
Answer:Option C (SRQP)