Assess the effectiveness of the following Meta Ads Conversion campaign strategies:
- Strategy I: An online clothing retailer targets users who have previously visited their site but did not make a purchase, using ads featuring specific products they viewed.
- Strategy II: A new health supplement brand targets a broad audience with ads for their product, aiming to drive first-time purchases.
- Strategy III: A software company targets users who downloaded their free trial, with ads encouraging them to purchase the full version.
Select the strategies that are being correctly applied for Conversion campaigns on Meta Ads.