Question

What invention helped the Ottomans lay siege to Constantinople in 1453? A) bullets B) gunpowder C) iron D) stirrup

Answer 1

I believe the answer is B) gunpowder. 

Answer 2

I'm not 100% sure, but I think it is- B) Gunpowder. 

Srry if I'm wrong, but like I said I'm not 100% sure.