Concept:
• Contextual interpretation of pronouns in literature.
• Identifying character restrictions within familial relationships.
Step 1: Analyze the immediate context of the sentence
The text says Sophie "wished she could be admitted more deeply into her brother’s affections and that someday he might take her with him."
It then mentions that "their father forbade it," which creates a direct link to the act of Geoff taking Sophie along with him into his world.
Step 2: Evaluate the specific activity described
In the story 'Going Places,' Geoff represents a world of mystery and escape for Sophie. He travels on his motorcycle.
The 'it' refers to the specific desire mentioned in the previous sentence: Geoff taking her with him, which implies her riding behind him on his bike.
Therefore, option (C) correctly identifies the referent of the pronoun.