Mixing video ad formats is a good idea — you know that. But if your goal is to drive maximum reach on a minimum budget, you should use Bumper ads and skippable in-stream ads .

• Bumper ads and masthead ads
• Non-skippable in-stream ads and masthead ads
• Non-skippable in-stream ads and skippable in-stream ads
• Bumper ads and skippable in-stream ads

The correct answer is: Bumper ads and skippable in-stream ads.

Explanation: If your goal is to drive maximum reach on a minimum budget, you should use a mix of skippable in-stream ads and bumper ads. Skippable in-stream ads allow the viewer to skip the ad after 5 seconds, while bumper ads are short, memorable messages that are 6 seconds or shorter and cannot be skipped by the viewer. Bumper ads are best for brand awareness and reach and are played before, during, or after other videos on YouTube and other websites and apps running on Google video partners. Bumper ads use Target CPM bidding, so you pay based on impressions. This combination of ad formats will help you reach a broad audience on a budget.