Correct option is B
The most appropriate option to fill in the blank is "beyond."
· Meanings of the words:
· Beyond: More than; exceeding.
· Over: Above or higher than something else.
· Beside: Next to.
· Through: Moving in one side and out of the other side of an opening, channel, or location.
· In this context, "beyond" is the correct word because it implies that her dedication exceeded or was more than what was expected.