The town council must decide how to allocate next year's budget. They survey a sample of the town population to determine residents' preferences. Which survey question shows the least bias?

1. "Do you think the town council should prioritize funding for new parks, street improvements, or social services?"

2. "Which do you believe is more important: funding for new parks, street improvements, or social services?"

3. "Should the town council allocate more money to parks, street improvements, or social services?"

4. "In your opinion, which of the following should receive more funding: parks, street improvements, or social services?"