Final answer:
The negative impact of megaprojects among the given options is Option B, as the use of public funds to encourage projects could lead to budget deficits without direct productivity gains.
Step-by-step explanation:
The question asks which option is NOT a positive impact of megaprojects. Based on the information provided:
- Option A (Increased industrial capacity) is generally a positive impact as it can boost local industry and employment.
- Option B (Public funds used to fund and encourage projects) can be seen as positive or negative, but in the context of economic impact, is not inherently positive as it could imply that public resources are being used in place of private investment.
- Option C (Stimulation of regional economy) is clearly a positive impact, as it promotes economic activity within the region.
- Option D (Enhancing regional infrastructure) is also a positive impact, as it improves connectivity and efficiency in the region, leading to economic benefits.
Therefore, the negative impact among the options, based on traditional economic theory, would be Option B, as it could imply a diversion of public funds which might otherwise be used for essential services or could result in budget deficits without direct productivity gains.