Knowing the characteristics of both Caroline Bingley and Elizabeth Bennet, how can we determine that they are both somewhat interested in Mr. Darcy...

The tension between Caroline Bingley and Elizabeth Bennett
has more to it than the pursuit of Mr. Darcy. Caroline is a snob and feels that Mr.
Darcy would help to increase her status in the social network of the town. Caroline
increases her interest in Darcy to out do Lizzie, who Caroline feels is beneath
her.

The women may have other men to choose from but none
is as presentable and desirable as Mr. Darcy.

It may be
said that the women are vying for Darcy's attention but that is not entirely true as
Lizzie snubs Darcy. However, as the story plays out, it becomes clear that he is much
more of a man of integrity than she would have believed. Lizzie becomes a challenge for
Darcy.