The impact of Northup being renamed "Platt" by Freeman is that it further obscures his identity, stripping him of his individuality and illustrating the dehumanizing effects of slavery. This act signifies a loss of self and reflects the oppressive dynamics present in the institution of slavery. Therefore, the correct answer is C. Northup's identity is further obscured.
;
Renaming Northup as "Platt" by Freeman serves to further obscure his identity and emphasizes the dehumanizing power dynamic of slavery. This act strips Northup of his individuality, deepening his emotional and psychological struggles. It illustrates the lengths to which enslavers go to assert control over their captives. ;