In 320 AD, Chandra Gupta I ascended to power, reuniting and strengthening northern India, while the Tamil kingdoms controlled the south. Option D is correct.
Chandragupta I was a king of the Gupta dynasty, who ruled in northern India. He was the first emperor of the dynasty.
The Gupta Empire was an ancient Indian empire lasting from the mid-to-late 3rd century CE to 543 CE.
C. Both clearly state the writer's main claim.
D, the Bill of Rights that Madison wrote would be added to the Constitution as amendments once the Anti-Federalists supported ratification. Anti-Federalists were worried that the Constitution gave too much power to the federal government. Furthermore, they were worried a strong central government could lead to tyranny. The Bill of Rights made the Anti-Federalists feel better. They were glad that there were rights for the average citizen that couldn't be taken away, because they thought these rights could prevent tyranny.