A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first because it introduces the main topic of globalization and its effect on food. It is a general statement that does not need other sentences for context. It sets the stage for the following ideas about food choices and trends. Why other lines are not chosen? Paragraph 2 starts with 'People are now...' which makes it dependent on prior context. Paragraph 3 starts with 'This curiosity...' which also needs context. Paragraph 4 starts with 'Yet, this trend...' which refers back to previous ideas. All these sentences do not stand alone.

Concluding sentence: Why this is the last line? This paragraph is the last because it wraps up the discussion. It shows the challenges that come with the trends mentioned before. It gives a final thought on how traditional industries must change, which concludes the topic.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 connects to Paragraph 1 because it shows how globalization affects people's food choices. This is a logical order where the general idea of globalization leads to the specific idea of adventurous eating.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 follows Paragraph 2 because it explains the result of people being adventurous. The curiosity mentioned in Paragraph 2 leads directly to the rise of ethnic restaurants, showing a clear cause and effect.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects to Paragraph 3 because it shows another effect of the trend. While ethnic restaurants are growing, traditional food industries must change. This shows a contrast between new trends and old industries.