Which family member does Sophie feel closest to?

Sophie feels closest to her older brother, Geoff. She admires him deeply, viewing him as mysterious and slightly removed from her own daily life, which makes her curious about his experiences and thoughts. Geoff works as an apprentice mechanic, and Sophie imagines that he leads a more exciting life outside of their home, filled with places and people she doesn’t know. She often shares her dreams with him, hoping he understands her desire for something more. Her connection to Geoff represents her yearning for adventure and her wish for someone to believe in her fantasies.

This question related to Chapter 8 English Flamingo Class 12th NCERT.
From the Chapter 8: Going Places.
Give answer according to your understanding.