A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of making tea. It sets up the theme of the process by talking about selecting tea leaves. This follows the rule of Topic Sentence. It does not refer to any previous information, so it is independent. Why other lines are not chosen? Paragraph 2 starts with 'For the tea to fully release its flavours,' which is not independent because it refers to the tea without introducing it first. Paragraph 3 starts with 'The leaves must then be steeped,' which uses 'the' and assumes prior knowledge of the leaves. Paragraph 4 starts with 'Once steeped to perfection,' which also assumes prior context.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the process of making tea. It describes the final step of pouring the tea into cups. This follows the rule of Conclusive Words, as it shows the end of the tea-making process.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it continues the process of making tea. The first paragraph talks about selecting tea leaves, and the second talks about heating water. This shows a logical order of steps in making tea.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 follows Paragraph 2 because it explains what to do after pouring hot water over the tea leaves. This shows a clear logical order in the steps of making tea.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it describes what happens after steeping the tea. It shows the next step in the process, which is logical.