A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main idea about organizing meetings. It uses the word 'however' which shows a contrast to the common belief that organizing a meeting is easy. This makes it clear that there are challenges. This follows the rule of Topic Sentence. Why other lines are not chosen? Paragraph 2 starts with 'This is especially true...' which needs context from the first sentence. Paragraph 3 starts with 'Employees may meet troubles...' which is not a general statement. Paragraph 4 starts with 'In addition...' which shows it is adding information, not starting a new idea.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it adds final details about organizing meetings. It does not introduce new ideas but wraps up the discussion about the challenges faced. This follows the Summary Style rule.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it gives an example of when the challenges of organizing a meeting are true. This follows the Broader to Specific Strategy.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 continues from Paragraph 2 by explaining the troubles employees face. This follows the Logical Order rule.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 adds more troubles that can happen when organizing a meeting. This follows the Connector Strategy because 'In addition' shows it is adding more information.