The correct answer is B) a summary of the findings and an interview with the group collecting the responses.
The sentence that best supports a claim that most people feel hopeful about the future of education is a summary of the findings and an interview with the group collecting the responses.
If we have the summary of the findings we can have an exact idea of the information revealed and with this, the possibility to affirm or not something. An interview with the group would represent a direct source of information and the responses can reveal aspects that bring light to the issue.