Question

Why did multiplication and division become easier during the Gupta empire?

A. They were the first to use base-10 numbers.
B. They were the first to understand long division.
C. They created a numeral for zero.
D. They combined Chinese and Greek knowledge.

I can't tell if its A or D

Answer 1

I believe the anwser is a

Answer 2

the answer would be A i believe so.