Cause they didn’t do what he wanted
The correct answer for the question that is being presented above is this one: "b. Mary had heard herself mentioned to Miss Bingley as the most accomplished girl in the neighbourhood; and Catherine and Lydia had been fortunate enough never to be without partners, which was all that they had yet learnt to care for at a ball"
Because it kind of goes with the story
Changes made for the sake of overall effects desired by dramatists.
