To analyze the tone created in paragraph 35—where Izzy feels an intense sense of loss and longing, comparing her emotions to a lost balloon becoming an "invisible nothing"—we should look for a paragraph that reinforces this sense of despair or frustration regarding her situation.
Option C (34) stands out: "Opportunity? For me? Or for you?" This line punctuates Izzy's feelings of suspicion and resentment towards her mother's definition of "opportunity." It reveals her sense of betrayal and skepticism about her mother's intentions, emphasizing her emotional turmoil and the divide between what she desires versus what is being imposed upon her.
Thus, the paragraph that most directly reinforces the tone created in paragraph 35 is C.