Explanation:
In this sentence the pronoun her is B.
object of preposition.
In a propositional phrase, the preposition
is usually followed by a noun or
pronoun, which functions as the object
of the preposition. In this sentence,
the preposition between is followed by
the noun Julie and the pronoun her.
Therefore, the pronoun her is depending
on the preposition, functioning as the
object of between.