A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of the text. It uses the rule of Introduction, as it talks about access to quality education and its importance for social justice. Why other lines are not chosen? Paragraph 2 starts with 'Children' and refers to a specific group, so it is not independent. Paragraph 3 starts with 'This' which is a pronoun and needs context. Paragraph 4 starts with 'Policies' which is also specific and does not introduce the main topic.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion by stating the importance of policies for education. It uses the rule of Conclusive Words, as it summarizes the need for equitable education.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects with Paragraph 1 because it gives a specific example of the issue mentioned in Paragraph 1. This follows the Broader to Specific Strategy.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it explains the effect of the lack of access mentioned in Paragraph 2. This shows a Cause and Effect Relationship.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it suggests a solution to the problem discussed in Paragraph 3. This follows the Logical Order strategy.