Concept:Jumbled sentence rearrangement requires identifying the logical sequence of subject, cause, effect, and modifier.
Explanation:Part Q “The poor visibility” is the subject of the sentence.
Part S “due to fog” provides the cause and naturally follows Q.
Part R “made the movement of traffic” states the consequence of the poor visibility.
Part P “very difficult” concludes by describing the impact on traffic movement.
Thus the correct order is Q, S, R, P.
This matches option D: QSRP.
Answer:D. QSRP