Final answer:
In Lois Lowry's novel "The Giver," Lily thinks that the identical birth mother shared by Jonas is the newchild Gabriel.
Step-by-step explanation:
In "The Giver," Lily, Jonas's younger sister, holds the belief that she and Jonas have the same birth mother as the newchild named Gabriel. This belief arises due to the emotional attachment between Jonas and Gabriel, which reflects a familial connection in Lily's mind. Throughout the narrative, Lily expresses her fascination and admiration for Gabriel, often remarking on the special bond between her brother Jonas and the newchild. This inference, however, is an assumption made by Lily based on her observation of the unique relationship between Jonas and Gabriel. It is a conclusion drawn from Lily's perspective as a child trying to understand the connections between people in the society she lives in.
The bond between Jonas and Gabriel is distinct, especially in the context of Gabriel's special abilities and the affectionate attention Jonas bestows upon him. This connection leads Lily to perceive a kinship among the three of them, assuming that they all share the same birth mother. However, this assumption is never explicitly confirmed or denied within the narrative. Lily's belief represents her attempt to comprehend the relationships and connections in their tightly regulated and controlled community, where biological family connections and individual histories are concealed or minimized. This reflects the innocence of a child's understanding and interpretation of familial ties within the confines of the society depicted in the story.