Edna Krabappel-Flanders is a fictional character from the animated television series "The Simpsons", who was voiced by Marcia Wallace until her death in 2013. She is the teacher of Bart Simpson's 4th grade class at Springfield Elementary School, and Ned Flanders's wife in later seasons.
Edna Krabappel-Flanders is a female character.
It's definitely correct because the word she is used in the text and it's mentioned that she is someone's wife. This question is difficult because it relies on real world understanding of words and their implications in terms of gender.