Step 1: Understanding the Structure:
In this sentence, we need to maintain the correct sequence of events and logical connection between them. The books being burnt happens first, followed by the house catching fire.
Step 2: Analyzing the Options:
- As the house caught fire and all the books were burnt: This implies that the two events happened simultaneously, which is not the intended meaning.
- The house having caught fire, all the books were burnt: This is grammatically awkward and makes the events sound disconnected.
- All the books were burnt, the house caught fire: This is the correct option because it logically connects the two events in the right sequence.
- As the books burnt, the house caught fire: This implies that the burning of the books caused the house to catch fire, which is not the intended meaning.
Step 3: Conclusion:
The correct sequence is All the books were burnt, the house caught fire.