Respuesta :
I had a question similar to this and I'm pretty sure b and d are the right answers.
Answer:
b. devolved the arabic numeral system
c. originated the idea of calculus
Explanation:
The Guptas were an Empire on India that was characterized for his advances on several different sciences, mostly mathematics and physics, and the main advances in Mathematics were the development of the arabi numeral system, and origination of the idea of calculus.