A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic. It talks about Indian companies and their plans. It does not need another sentence to make sense. It does not use words that need prior context. Why other lines are not chosen? Paragraph 2 starts with "Infosys" which is a specific name and needs context. Paragraph 3 starts with "To put this in perspective" which shows it needs earlier information. Paragraph 4 starts with "Now" which shows it connects to something before.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion. It gives the final details about the proposals of Infosys and Wipro. It does not need more information after it.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it continues the topic of Indian companies. It uses the Logical Order rule because it gives specific examples of companies that are part of the main idea.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 because it gives an example to help understand the big numbers mentioned. It uses the Broader to Specific Strategy because it explains the large amounts by giving a past example.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it continues the topic of Infosys and Wipro. It uses the Logical Order rule because it shows what these companies are proposing after giving the example.