A carpet sales retailer is rolling out a new line of carpeting and would like to advertise their video ads within home furnishings inventory. Before they set up their campaign in Campaign Manager 360, what’s the first step they should take?

They should confirm the requirements from publishers for specific campaign dimensions.
They should create their companion banner ads to reflect this type of campaign.
They should send the video ad tag to each of the selected publishers.
They should adjust the file size for each video ad, then they should upload them separately.