Answer:
The main function of this text in the narrative is to Develop character
Step-by-step explanation:
In this excerpt of "A quick bite" we have a scene where Alicia and her brother Ron on this ship and she doesn't know if she can fully trust him about telling him the truth, because she is really young and he likes to tease her, so when she asks about how much does the bite of a scallop hurt? and his brother responds with these lines, she shows her inquisitive and suspicious character by repeating her question.