A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic. It tells us about the first public school to have an all-vegetarian menu. This is a general statement that does not need other sentences for context. It does not start with a conjunction or use pronouns. Why other lines are not chosen? Paragraph 2 starts with "The" which makes it dependent on prior knowledge. Paragraph 3 starts with "The school’s administration" which uses a pronoun. Paragraph 4 starts with "This year" which suggests it needs more context.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the topic. It shows what the Coalition is doing now. It gives a final example of their work, which brings together the earlier points about the all-vegetarian menu.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it gives more details about the all-vegetarian menu. It explains when the plan started. This shows a logical order from the introduction of the school to the launch of the menu.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it explains how the school used the all-vegetarian plan. It shows the action taken by the school after the plan was launched. This follows a logical order from the plan to its implementation.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it talks about the Coalition helping another school. It shows the ongoing support of the Coalition after helping the first school. This shows a logical order from one school to another.