Final answer:
Isabel refers to herself as a “girl” in the book “Chains” to convey her youthful innocence and the adventurous spirit in her journey to freedom.
Step-by-step explanation:
In the book Chains, Isabel refers to herself as a “girl” as she plans her escape to emphasize her youthful naivety and the sense of adventure she feels about gaining her freedom. Despite the serious and dangerous nature of her situation as a person seeking liberation from oppression, her choice of the word “girl” instead of “woman” conveys a certain innocence and possibly a lack of full awareness of the risks involved.
This diction reflects her internal state, caught between the vulnerability of youth and the brave front of someone taking control of her destiny.