The best response that captures the significance of Aminadab's comment in contrast with Aylmer's perspective is:
B) Aminadab is acknowledging the birthmark's beauty, while Aylmer sees it as a flaw.
Aminadab's remark reflects a more accepting and perhaps affectionate view of Georgiana's birthmark, suggesting that he sees it as an integral part of her beauty. In contrast, Aylmer, motivated by his obsessive scientific ideals and a pursuit of perfection, views the birthmark as a blemish that he feels must be removed. This contrast highlights different attitudes toward human imperfection and the nature of beauty.