A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of finances before starting a degree. It sets the stage for the discussion. It does not refer to any previous information. Why other lines are not chosen? Paragraph 2 starts with "The average cost..." which refers to a specific cost and is not general. Paragraph 3 starts with "Don't be discouraged..." which assumes prior knowledge of prices. Paragraph 4 starts with "You can find..." which is a suggestion and does not introduce the topic.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it provides practical solutions to the financial concerns discussed earlier. It wraps up the topic by giving options for students.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): This pair connects because Paragraph 2 gives specific information about the costs mentioned in Paragraph 1. It follows a logical order where the general idea of finances leads to specific details about costs.
• Pair 2 (Paragraph 2 → Paragraph 3): This pair connects because Paragraph 3 responds to the information in Paragraph 2. It addresses the concern about high prices and offers reassurance. This shows a cause and effect relationship.
• Pair 3 (Paragraph 3 → Paragraph 4): This pair connects because Paragraph 4 gives specific options that support the idea in Paragraph 3. It continues the theme of finding ways to manage costs.