P : early today Q : at least five persons were killed and 32 injured R : when a passenger train rammed into S : a stationary goods train The Proper sequence should be:

The correct answer is: D. RSQP

The sentence is about a train accident that happened early today. The first event that happened was that a passenger train rammed into a stationary goods train. This caused at least five people to be killed and 32 people to be injured. The sentence is in the past tense, so the correct sequence of events is:

• The passenger train rammed into the stationary goods train.
• At least five people were killed.
• 32 people were injured.

The other options are incorrect because they do not follow the correct sequence of events. Option A, PQRS, puts the event that happened last (the number of people who were injured) first. Option B, QRSP, puts the event that happened second (the number of people who were killed) first. Option C, RSPQ, puts the event that happened third (the train accident) first.