B. Skippable in-stream ads and in-feed video ads:

Skippable in-stream ads allow for longer-form content to explain the value proposition and encourage lead generation.

In-feed video ads capture users actively searching for information, increasing the likelihood of lead generation.

Bumper ads are too short to effectively generate leads.

B. They expand campaigns to run on more places, on and off YouTube, and drive more conversions while still optimizing for the lowest CPA.Video action campaigns are designed to maximize conversions by running ads across YouTube and Google video partners.

These campaigns use automated bidding to optimize for the lowest cost-per-acquisition (CPA).

A. Custom Audiences:

Custom Audiences allow you to target users based on their past search activity on Google.

This is perfect for reaching customers who have already shown interest in specific keywords.

In-Market audiences target broad purchase intent, not specific search terms.

A. Run five ad variants per campaign.

Testing multiple ad variants allows for optimization based on performance data.

Running multiple adds will increase the ability to optimize for the best performing ad.

Single add campaigns will limit the ability to improve the campaign.

C. They'll see how many ads served to how many people and how many times, across devices and formats.Unique reach and frequency metrics provide insights into the number of unique users reached and the average number of times they saw the ads.

This helps understand the effectiveness of the campaign in reaching the target audience.

The other options describe other metrics or analyses.