At the beginning of the reading section, Teodoro is resolved to: A. Fight to earn Wendy's trust back.
At the beginning of the reading section, Teodoro is consumed by guilt and regret over his betrayal of Wendy's trust. He is determined to make amends and win back her love. He is willing to do whatever it takes, even if it means sacrificing his own happiness.
The other options are not as well supported by the text. Teodoro does not express a strong desire to stay with Manny or help Xochitl with her singing career. And while he does eventually return home, this is not his initial resolution.