The sentence that does not support the author's point that black soldiers faced discrimination is the one stating roles without mentioning inequality: "Black soldiers served in artillery and infantry and performed all noncombat support functions that sustain an army, as well."
To identify which sentence does not support the author's point that black soldiers faced discrimination during the Civil War, let's examine each option within the context of historical evidence:
- The sentence "Black soldiers served in artillery and infantry and performed all noncombat support functions that sustain an army, as well." doesn't explicitly mention discrimination. It simply states the roles black soldiers had, including combat roles and support functions.
- The sentence "Because of prejudice against them, black units were not used in combat as extensively as they might have been." directly supports the point as it mentions they faced prejudices limiting their combat roles.
- The sentence "Black soldiers were initially paid $10 per month from which $3 was automatically deducted for clothing...In contrast, white soldiers received $13 per month from which no clothing allowance was drawn." clearly supports the point by highlighting the pay disparity based on race.
- The sentence "Although the threat generally restrained the Confederates, black captives were typically treated more harshly than whites." supports the point by showing that black soldiers captured by the Confederacy faced harsher treatment due to discrimination.
Therefore, the sentence that does not explicitly support the point of black soldiers facing discrimination is the one that does not mention any inequality or prejudice.