Concept:This is a sentence rearrangement task. The correct order of the four parts between the first and last sentences forms a logical paragraph.
Explanation:Start with statement 1: "Festivals play a big role in cultural unity."
Part P directly continues: "They bring together people of different beliefs."
Part Q follows by introducing regional diversity: "Each region celebrates with its unique customs."
Part R then explains the benefit: "Shared celebrations promote tolerance and joy."
Part S adds another value: "They also preserve traditional art forms."
This leads smoothly to statement 6: "Hence, festivals strengthen the social fabric."
The correct sequence is P, Q, R, S.
Answer:Option A (PQRS)