A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of career planning. It uses the rule of Topic Sentence because it gives a clear idea about what will be discussed. Why other lines are not chosen? The other paragraphs are not chosen because they do not stand alone. For example, Paragraph 2 starts with "Career clusters" which needs the first paragraph for context. Paragraph 3 starts with "What you need to do" which is not general and needs more information. Paragraph 4 starts with "Finally" which shows it is not the first idea.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the ideas. It uses the rule of Conclusive Words with the word "Finally". It shows the last step in the process of career planning.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it explains more about career clusters. This follows the Broader to Specific Strategy. The first sentence gives a general idea, and the second sentence gives more details about it.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it gives a practical action related to career clusters. This follows the Logical Order rule. After explaining what career clusters are, it shows what to do next.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it continues the idea of taking action. This follows the Logical Order rule. After explaining what to do, it suggests setting goals as the next step.