Help on A celebration of grandfathers studySync quiz please

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Which three parts of these excerpts reflect the idea that war affects not only the minds of the combatants but also their physical reactions?

Which of these sentences exhibits proper usage? a. many doctors affiliated with university hospital expressed concern about the policy (moore 5). b. many doctors affiliated with university hospital expressed concern about the policy (moore 5). c. many doctors affiliated with university hospital expressed concern about the policy (moore 5). d. many doctors affiliated with university hospital expressed concern about the policy (moore 5).