A.I. Explanation:

First sentence: Why this is the first line? This sentence introduces David Herbert Lawrence. It gives basic information about him. It does not need other sentences to understand it. This is why it is the first sentence. It follows the rule of Topic Sentence because it introduces the main topic of the text. Why other lines are not chosen? The other sentences do not work as the first sentence. For example, 'He was a clever child...' starts with a pronoun, so it needs the first sentence for context. 'By this time he had started writing...' uses 'this time,' which needs earlier information. 'This describes his childhood...' uses 'this,' which refers back to something. 'The hero of the story...' talks about a character without introducing Lawrence first. 'In other novels...' refers to other works without context.

Concluding sentence: Why this is the last line? This sentence concludes the text by talking about other works by Lawrence. It wraps up the discussion about his writing. It follows the Conclusive Words rule because it gives a final thought on his characters.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): This pair connects because the second sentence gives more information about Lawrence. It follows the Broader to Specific Strategy. The first sentence introduces him, and the second sentence explains his early life.
• Pair 2 (Paragraph 2 → Paragraph 3): This pair connects because the second sentence shows what happened after he went to university. It follows the Logical Order rule. The first sentence talks about his education, and the second talks about his writing.
• Pair 3 (Paragraph 3 → Paragraph 4): This pair connects because the fourth sentence gives background about his childhood. It follows the Object Subject Strategy. The third sentence talks about his writing, and the fourth talks about his early life.
• Pair 4 (Paragraph 4 → Paragraph 5): This pair connects because the fifth sentence introduces a character from his novel. It follows the Topic Example rule. The fourth sentence talks about his childhood, and the fifth sentence gives an example from his writing.
• Pair 5 (Paragraph 5 → Paragraph 6): This pair connects because the sixth sentence talks about other works by Lawrence. It follows the Same Theme rule. The fifth sentence discusses a character, and the sixth sentence connects to other stories.