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 talks about the mix of fashion and high technology. This is a broad overview of what the text will discuss. It does not refer to any previous information. Why other lines are not chosen? Paragraph 2 starts with "Corpe Nove" which is a specific name and does not introduce the main topic. Paragraph 3 starts with "And at Nexia Biotechnologies" which is also specific and does not set the topic. Paragraph 4 starts with "Not surprisingly" which suggests it is giving an opinion and not introducing the main idea.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it gives a conclusion about the topic. It summarizes the ideas about high technology in fashion and its future impact. It wraps up the discussion.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): This pair connects because Paragraph 2 gives a specific example of how high technology is used in fashion. It follows the general statement in Paragraph 1. This is a Broader to Specific Strategy.
• Pair 2 (Paragraph 2 → Paragraph 3): This pair connects because Paragraph 3 gives another example of high technology in fashion. It continues the topic of new materials and innovations in clothing. This shows Logical Order.
• Pair 3 (Paragraph 3 → Paragraph 4): This pair connects because Paragraph 4 gives an opinion about the impact of high technology in fashion. It follows the example in Paragraph 3 and shows the effect of these innovations. This is a Cause and Effect Relationship.