The true statement about the African Americans in the North during the Civil War is that they saw no combat because they mainly performed in non-combat support functions.
The black-american soldiers served in artillery, infantry and performed in non-combat support functions during the civil war.
African-Americans including the black carpenters, cooks, guards, laborers, nurses all also contributed to the Civil war cause.
Hence, the true statement about the African Americans in the North during the Civil War is that they saw no combat because they mainly performed in non-combat support functions.
Therefore, the Option C is correct.
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