A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first line because it introduces the main topic of Australia's immigration policy. It does not refer to any previous information and sets the stage for the discussion. It is a general statement about the past policy. Why other lines are not chosen? Paragraph 2 starts with "We took" which uses a pronoun and does not stand alone. Paragraph 3 starts with "With the election" which is a dependent clause. Paragraph 4 starts with "At the same time" which is a conjunction. Paragraph 5 starts with "The rate" which uses the definite article and assumes prior knowledge.

Concluding sentence: Why this is the last line? This paragraph is the last line because it summarizes the impact of the previous changes. It reflects on the overall situation and gives a final thought on human rights.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it continues the topic of refugees. It shows how the generous policy led to taking more refugees. This is a logical order.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 follows Paragraph 2 because it shows a change in the situation. The new administration's actions relate to the previous discussion about refugee numbers.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it explains the changes in migration law that happened after the new administration. This shows a logical order of events.
• Pair 4 (Paragraph 4 → Paragraph 5): Paragraph 5 follows Paragraph 4 because it discusses the effects of the changes in migration law. It shows how the new policies impacted refugee arrivals.