Consider the following approaches to setting up and optimizing Google Ads campaigns. Identify which approaches are most likely to enhance campaign effectiveness:
- Approach I: Utilizing a wide array of keywords to increase the campaign's reach across various user queries.
- Approach II: Crafting ad copy that directly responds to the user's search intent, complemented by a compelling call-to-action.
- Approach III: Directing ad clicks to the website’s homepage instead of a dedicated landing page.
- Approach IV: Continuously modifying the bidding strategy in response to the campaign's analytics and performance metrics.
Which of these approaches are effective in setting up and optimizing Google Ads campaigns?