You're managing a digital marketing campaign and need to make real-time adjustments based on the data you're observing. Evaluate the following scenarios and decide which action is most appropriate for each:
- Scenario I: The website’s new landing page is experiencing lower-than-expected user engagement in the first few hours of the campaign launch.
- Scenario II: A week into the campaign, your social media posts are receiving significantly less engagement than previous campaigns.
- Scenario III: The click-through rate (CTR) of your PPC ads is below the industry average after two days of running.
- Scenario IV: Early email campaign data shows open rates are higher than expected, but click-through rates are low.
Choose the most suitable real-time adjustment for each scenario.