Answer: C) as a way to clarify gender boundaries in a process called border work.
Step-by-step explanation:
Barrie Thorne is an American sociologist who focused her studies on gender, developing the theory of Gendered borderwork in which she analyzes how children's play influences the development of gender roles.
According to his theory, in childhood the educational system promotes the separation of children according to their gender, between boys and girls, that is why in the play area boys and girls segregate to play and develop games that explore these differences between genders.
In this case, the girl with her nursery rhyme was emphasizing a separation between boys and girls, indicating that they were not the same.
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