By this time P : at the railway station Q : reported mass looting R : reports of violence were flooding in S : while police dispatches The Proper sequence should be:

The correct answer is: A. RSPQ

The sentence is about reports of violence flooding in while police dispatches were being made. The first event in the sequence is that reports of violence were flooding in. The second event is that police dispatches were being made. The third event is that there was mass looting at the railway station.

Option A, RSPQ, is the only option that puts the events in the correct sequence. Option B, RSQP, puts the second event before the first event. Option C, SPRQ, puts the third event before the second event. Option D, SQRP, puts the third event before the first and second events.