A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first line because it introduces the main topic of Haiti. It gives a broad overview of where Haiti is located without going into details. This follows the rule of Topic Sentence. Why other lines are not chosen? The other paragraphs are not chosen because they do not stand alone. For example, Paragraph 2 starts with 'It was', which means it needs more context. Paragraph 3 starts with 'Later', which shows it is not the first idea. Paragraph 4 starts with 'To this day', which also needs earlier information. Paragraph 5 starts with 'Some', which is not clear without more context.

Concluding sentence: Why this is the last line? This paragraph is the last line because it gives a specific example of the customs Haitians follow. It wraps up the ideas about Haiti's culture and history. This follows the Summary Style rule.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it gives more information about Haiti. It uses the Broader to Specific Strategy. The first paragraph talks about the location, and the second paragraph tells us it was the first Spanish colony.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it continues the story of Haiti. It uses the Logical Order rule. The second paragraph talks about its Spanish history, and the third paragraph explains what happened next with the French.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it shows the result of Haiti's history. It uses the Cause and Effect Relationship rule. The third paragraph talks about wealth, and the fourth paragraph explains how this affects the people today.
• Pair 4 (Paragraph 4 → Paragraph 5): Paragraph 5 connects to Paragraph 4 because it gives an example of the customs mentioned. It uses the Topic Example rule. The fourth paragraph talks about customs, and the fifth paragraph gives a specific example of a religion.