1-C. They have suggested that these people traveled to America by boat and lived on the east coast.They have suggested that these people traveled to America by boat and lived on the east coast.
2-C. From the East Coast to the West Coast, there are four different time zones.From the East Coast to the West Coast, there are four different time zones.
東海岸から西海岸へ、四つの異なるタイムゾーンがあります。
3-C. Almonds came from the Middle East.Almonds came from the Middle East.