If you’re planning to run a Google Video campaign with a consideration goal, you should use the Core performance metrics solution to measure how many people watched your video.

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• Forecasting reach of your YouTube campaign alongside print ads
• Core performance metrics

The correct answer is: Core performance metrics

Explanation: To measure the number of people who watched your video in a Google Video campaign with a consideration goal, you should use the core performance metrics. These metrics include the total number of views, which is the number of times people watched or engaged with your ad, and the average cost-per-view (CPV), which is the average amount you pay per view. These metrics can be used to determine the success of your campaign and assess the level of consideration and interest in your brand. Additionally, you can also use Brand Lift metrics to evaluate purchase intent, favorability, and consideration.