What's Liza's problem? She wants her old life back. She's afraid she'll have to return to her old life. She doesn't want to appear ungrateful for what Higgens gave her. She wants to be independent.

Liza's teacher has given her class a math problem to solve. She says that there is a trick to it but if they really think about it, the answer is quite simple. The class is silent for a few moments before Liza suddenly raises her hand and provides the correct solution to the problem. In this scenario, Liza's sudden understanding of the problem exemplifies