A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first because it introduces the main topic. It talks about the borders of France and how they changed during important wars. This is a general statement that sets the stage for the rest of the text. It does not use any words that need prior knowledge, so it stands alone. Why other lines are not chosen? The other paragraphs are not chosen because they do not meet the rules for being independent. For example, Paragraph 2 starts with 'On May 12th, 1804' which gives a specific time and needs context. Paragraph 3 starts with 'The first emperor was Napoleon,' which assumes we know who the emperor is. Paragraph 4 starts with 'By 1810,' which also gives a specific time and needs context.

Concluding sentence: Why this is the last line? This paragraph is the last because it wraps up the discussion about Napoleon's rule. It gives a clear end point by listing the regions he did not control. This shows the overall theme of his power and limits.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it continues the idea of France's growth. The first paragraph talks about how the borders grew, and the second paragraph explains what happened next. This shows a logical order of events.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it gives more information about the Empire. The second paragraph tells us about the name of the Empire, and the third paragraph tells us who ruled it. This shows a broader to specific strategy.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it talks about the areas that Napoleon did not control. The third paragraph explains who Napoleon was, and the fourth paragraph shows the limits of his power. This shows a logical order of ideas.