Figure out the central idea of this paragraph

In the earliest days of Greece, the country was divided into small, individually governed areas called city-states. City-states were often separated by forests or mountains and were far apart, and the dialects spoken in each city-state varied. Because of these barriers, people did not travel much, so city-states did not frequently interact. If you were born in a particular city-state, you would usually live there your whole life. As a result, each city-state had its own myths that most residents knew and told over and over again.

Read the sentences. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level. lower points may exist. which choice correctly uses the subordinating conjunction “although” to combine the sentences? the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level, although lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level. although lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level although, lower points may exist. the lowest point in antarctica appears to be the bentley subglacial trench, which is 8,200 feet below sea level; although lower points may exist.