How did the modern art movement, which emerged in the postwar period, reflect changes in scientific theory? both questioned the way people examined the world. both rejected proven theories about the world. both argued against religion’s societal influence. both were disillusioned with human progress.

The answer is they both questioned the way people examined the world.

Explanation:

Scientific theory, around that time, attempted to answer some of the greatest questions about the universe, especially in the field of physics. Take, for instance, the advances on relativist phyisics and how it changed the way people understood the cosmos (and still does).

In art history, modern art attempted to question the values of academic theory. Marcel Duchamp, with his work The Fountain (a urinal with Duchamp's signature, displayed in a gallery) made people question the "rules" of art, if any; and Antonin Artaud's "Theatre of Cruelty" sought to made people uncomfortable by showing them people screaming and suffering, as a reflection on war.