What is the main purpose of the questions in sentences 10-12?
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O To reveal the narrator's sense of isolation from family members other than her father
O
○ To suggest the narrator's uncertainty about whether the radio will work
O To demonstrate the knowledge of electric principles required to operate the radio
O To provide examples of the kinds of messages the narrator and her father obtained
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O To reveal the narrator's sense of isolation from family members other than her father
O
○ To suggest the narrator's uncertainty about whether the radio will work
O To demonstrate the knowledge of electric principles required to operate the radio
O To provide examples of the kinds of messages the narrator and her father obtained