Some historians consider the late nineteenth century and early twentieth century to have been crucial decades in the development of Western thought. Which of the following best supports that contention?
a.Discoveries in physics introduced the concepts of uncertainty and relativity, which challenged mechanistic models of the universe.
b.Christian missionaries introduced strains of relativism into Western thought after encountering cultures with radically different world views.
c.Efficiency experts employed scientific methods to regulate the workplace and thereby encouraged faith in economic progress.
d.Visual artists inspired by photography made realism the dominant aim of painter and sculptors.