Read this sentence from "Rules of the Game." Soon I no longer lost any games or Life Savers, but I lost my adversaries.

Which statement best explains how the action in this sentence provokes the speaker's decision to begin playing chess with Lau Po?

She wants to learn more about chess so she can finally beat her brothers.

She wants to prove that girls can be better chess players than boys.

Her brothers take all her Life Savers, so she wants to win money to buy more.

Her brothers will not play chess with her anymore, so she needs a new opponent.