I believe the answer you are looking for is: D). Vivid Photographs, A common trait among most Pop Art designs nowadays is bright vivid colors and while it can be a comic strip design, It's not all that common. Muted colors and faux textures are also incorrect therefore the only answer is: D). Vivid Photographs.
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~Former Frequent Answerer Oxideko
I believe the answer is a citiation
Answer: War is a terrible thing. Yet the cadence of troops marching through the streets, the ringing sound of national airs, the flapping of proudly hoisted flags, and, in more modern times, the swoosh of aircraft racing overhead typically send hearts pounding and aspirations soaring. Inevitably, it is in the period following the cessation of hostilities, in times of so-called peace, that the initially envisioned mission becomes increasingly difficult to identify. An awareness of the cohorts of war surfaces even more gradually, and only in recent decades has the study of the Great War of 1914–1918 moved beyond politics.