Evaluate the following statements about criteria for identifying successful channel experiments in achieving Product-Market-Channel Fit:
- Statement I: A significant increase in Net Promoter Score (NPS) after implementing a new social media strategy is a direct indicator of successful Product-Market-Channel Fit.
- Statement II: High Return on Ad Spend (ROAS) in a recent paid advertising campaign indicates a positive alignment with Product-Market-Channel Fit.
- Statement III: Comparing the conversion rates from a new SEO strategy to industry benchmarks is crucial in assessing its success for Product-Market-Channel Fit.
- Statement IV: An influencer marketing campaign that leads to increased brand awareness but not to an increase in sales may not fully indicate a successful Product-Market-Channel Fit.
Select the correct statement(s).