Sara 正在开始建立她的品牌认知度推广活动。她应该考虑哪些广告形式？请选择所有适用选项。

For brand awareness campaigns, the goal is to maximize visibility and recall. Message Ads (Conversation Ads) are effective because they allow for interactive engagement, helping users learn more about the brand directly. Single Image Ads are a foundational ad format, excellent for quickly conveying a brand message with a strong visual. Video Ads are highly engaging and can communicate a brand's story and values effectively, leading to higher recall. Lead Gen Forms are primarily designed for capturing leads, not for initial brand awareness, as they require a commitment from the user that is typically sought later in the marketing funnel.