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 gives a broad overview of what career planning is about. It does not use any pronouns or definite articles that refer to previous ideas. Why other lines are not chosen? Paragraph 2 starts with "The great news" which is a phrase that needs context. Paragraph 3 starts with "Your lecturers" which uses a pronoun that refers to people not mentioned before. Paragraph 4 starts with "Additionally" which is a conjunction that connects to previous ideas.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion about career planning and education. It provides a final thought on how university programs help students prepare for their future jobs.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 because it continues the topic of career planning. It uses the phrase "the great news" to show that it is related to the positive aspects of defining career goals.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it gives examples of the ideas and stories mentioned in Paragraph 2. It explains how lecturers can help students with their career paths.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it continues to discuss how students can prepare for their careers. It adds more information about university programs that help students gain skills.