A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first line because it introduces the main idea about business executives. It sets the stage for the topic without needing other sentences for context. It uses a general statement to start the discussion. Why other lines are not choosen? The other paragraphs are not chosen because they do not stand alone. For example, Paragraph 2 starts with "Discussions" which needs context. Paragraph 3 starts with "Like a driver" which is a comparison and needs a subject. Paragraph 4 starts with "Others" which refers back to a previous idea.

Concluding sentence: Why this is the last line? This paragraph is the last line because it wraps up the discussion. It shows the final point about executives being too busy to reflect. It summarizes the main idea of the text.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it continues the idea of business executives. It uses the Connector strategy by showing what these executives recognize about their situation.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it gives an example of the danger mentioned. It uses the Broader to Specific Strategy by explaining the risk in a more detailed way.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it shows how some executives are too busy to think about the future. It uses the Logical Order strategy by explaining the consequences of the situation described in Paragraph 3.