Consider the following scenarios related to optimizing ad placement and delivery in digital ad sets. Assess each scenario and determine if it effectively demonstrates optimization of ad placement and delivery:
- Scenario 1: An online clothing retailer uses A/B testing to compare the performance of their ads in Instagram stories versus feed placements, adjusting future campaigns based on the results.
- Scenario 2: A health food brand schedules its ad delivery on social media platforms during peak activity times identified through audience analytics.
- Scenario 3: A software company places all its ads exclusively in YouTube video pre-rolls, regardless of the varying viewer engagement and ad relevance.
- Scenario 4: An automotive company uses the same ad placement for different ad formats, such as videos and static images, without testing for effectiveness.
Identify which scenarios showcase effective optimization of ad placement and delivery.