What happens to ninety one people who signed the petition in support of the accused

Which of the following was not an effect of westward expansion? a. native american tribes suffered confinement on reservations. b. native americans learned new techniques of irrigation. c. many native americans died from the spread of disease. d. natural resources were depleted from misuse by white settlers.

Don’t mind the already marked answer but taking it now

What new deal programs would have had the largest impact on rural electrification during the 1930s?