Which of the following is an example of a dynasty? a line of rulers from Northern India who all descend from a common ancestor a philosophical way to govern larger groups of people based on a heliocentric model a Roman civilization that swept to power by replacing all surrounding cultures' calendars the growth of a nation over a period of time, as a function of population change time

The correct answer is: **a line of rulers from Northern India who all descend from a common ancestor** **Explanation:** A **dynasty** refers to a sequence of rulers from the same family or lineage, typically maintaining power over multiple generations. The first option describes a group of rulers who share a common ancestor, fitting the definition of a dynasty. The other options do not align with the concept of a dynasty: - **Philosophical governance based on a heliocentric model**: Heliocentrism relates to the position of the sun in the solar system, not governance or dynastic rule. - **A Roman civilization replacing calendars**: This describes cultural or societal change, not a lineage of rulers. - **Growth of a nation based on population change**: This pertains to demographic trends, not leadership succession. - **Time**: This is a broad concept and not related to dynastic rule. **Summary:** A dynasty specifically involves a family line of rulers, making the first option the correct example.