A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of the process. It clearly states the first step needed for the event. This follows the rule of Topic Sentence, as it sets up the main topic without going into details. Why other lines are not chosen? The other paragraphs are not chosen because they do not stand alone as the first sentence. For example, Paragraph 2 starts with "Following this," which is a transitional phrase. Paragraph 3 starts with "Before the event," which also needs context. Paragraph 4 starts with "Final preparations," which assumes prior knowledge.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it summarizes the final actions needed for the event. It wraps up the process by showing what happens on the day of the event. This follows the rule of Conclusive Words, as it gives a clear end to the sequence.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 using the Connector strategy. The phrase "Following this" shows that it is the next step after securing permits.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 using the Logical Order strategy. After setting up fundraising and registration, it is important to engage the community before the event.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 using the Chronological Order strategy. After engaging the community, the next step is to prepare for the event on the day.