A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of remote work and its benefits. It is a general statement that does not need other sentences for context. It does not start with a conjunction or use pronouns. Why other lines are not chosen? Paragraph 2 starts with 'Moreover,' which is a conjunction, so it cannot be independent. Paragraph 3 starts with 'Additionally,' which is also a conjunction. Paragraph 4 starts with 'Furthermore,' another conjunction, so it is not independent.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the discussion about the benefits of remote work. It provides a final point about flexibility, which is an important aspect of remote work.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 using the Connector strategy. The word 'Moreover' shows that it adds more information about the benefits of remote work.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects to Paragraph 2 using the Connector strategy. The word 'Furthermore' shows that it continues to discuss the benefits of remote work, specifically about commuting.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 using the Connector strategy. The word 'Additionally' shows that it adds more information about the benefits of remote work.