Final answer:
The question '3) What were the key findings and conclusions of the evaluation?' would make a good question for an impact evaluation.
Step-by-step explanation:
Out of the given options, the question 'What were the key findings and conclusions of the evaluation?' would make a good question for an impact evaluation. This question focuses on the outcomes and results of the evaluation, which can provide insights into the effectiveness of the evaluated program or intervention. The key findings and conclusions can help determine the impact and success of the evaluation.