A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic. It sets the scene by telling us about the time and place. It does not need another sentence to understand it. It does not use any pronouns or definite articles that refer to previous ideas. Why other lines are not chosen? Paragraph 2 starts with "Upon seeing him," which uses a pronoun and needs context. Paragraph 3 starts with "Monaco and his colleagues," which also uses a specific subject that needs prior knowledge. Paragraph 4 starts with "Amid the strong smell," which is not general and needs context.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the story. It gives a final detail about the situation. It summarizes the events that happened before and provides a conclusion to the scene.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it describes what happens when the piglets see Monaco. This shows a logical order of events. The phrase "Upon seeing him" is a clear connector that links the two ideas.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 follows Paragraph 2 because it explains what happens next. After the piglets try to escape, Monaco and his team take action. This shows a logical order of events.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it describes the situation after the piglets are caught. The strong smell is a result of the actions taken by Monaco and his colleagues. This shows a cause and effect relationship.