Which best describes a change that mahayana ideas made to buddhism?
a. encouragement of living moderate lives
b. adherence to eight moral elements of life
c. belief in a western-style concept of heaven
d. belief that people can perfect their souls over time

Which effect did the united states supreme court's decision in plessy v. ferguson have? 1. ending segregation in all public schools in america 2. protecting voting rights for african americans by eliminating literacy tests 3. upholding the rights of all citizens to be treated equally by the government 4. authorizing the system that kept black and white people separated