Read the following excerpt from a fictional story:
As the sun began to set, Ella stood at the edge of the cliff, contemplating the choices that had led her there. Memories of laughter echoed in her mind, mixed with a pang of regret. She could either step back into her old life, filled with its mundane comforts, or leap into the unknown.
In the context of plot and structure, which of the following best describes the central conflict presented in this excerpt?