TOEFL Reading: ETS-TOEFL阅读机经 - DULS4U48T74CR8J2L$

According to paragraph 3, which of the following is NOT true of David Alfaro Siqueiros? A. He used modern industrial materials rather than traditional materials in his art. B. He designed images that were intentionally meant to please his audience. C. He believed in socialism and viewed the future of workers in the modern industrial era favorably. D. He took an international approach to both politics and art.