You should use Product Feed Extension in the Video action campaign with the goal to drive more conversions in a simple and cost-effective way in a single automated campaign.

• Location
• Lead Form
• Site Links
• Product Feed

The correct answer is: Product Feed

Explanation: To drive more conversions in a simple and cost-effective way in a video action campaign, you should add a product feed to your campaign. Product feeds allow you to show browsable product imagery below your video ads and inspire users to make a purchase. Advertisers that add product feeds to their video action campaigns achieve over 60% more conversions at a lower cost, on average. To set up a product feed, you need to have a Merchant Center account and link it to your Google Ads account. The feed should include at least four products with images and comply with the shopping and advertising policies.

Read more here: https://support.google.com/google-ads/answer/11371384