Final answer:
The last chapter of A Mercy is written from Florens' mother's point of view, and her words are ironic because Florens cannot hear them and they will never be read by Vaark. The correct answer is option d).
Step-by-step explanation:
The correct answer is d) both A and B are correct. In the last chapter of A Mercy, Florens' mother explains her reasons for urging Vaark to accept her daughter as partial payment for her master's debt. Her words are ironic because Florens cannot hear her mother's words, so she will keep the trauma of feeling abandoned within her. Additionally, her mother's words, like her own confession, will never be read by Vaark, so he will never understand Florens' motivation.