The correct option is A is testing their ripeness
By taking time to peel the figs, Maman-Nainaine is making sure they're ripe (A). There is no cooking in the story (B), nor is superstition the reason for Maman-Nainaine's behavior (C). Although she may be refined, the action is not the illustration of refinement (D). We don't see Maman-Nainaine mock Babette (E).