What is 1+1 bro i need my brother to know

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

At 6 1/2 cents per pound of string beans how much does 7 pounds cost