Answer:
I believe the answer is A, he worked with Alexander the Great to build an empire. It's actual uncertain of how they met or what relationship they had <em>exactly,</em> but Chandragupta was very influenced by Alexander to create an empire.
Explanation:
C or D.
Nubian kingdom
Rival to Egypt, the Nubian kingdom of Kush exuded power and gold.
"speed up" is the answer