Single Image Ads, Event, and LinkedIn Company Page audiences can be used for lead gen retargeting campaigns.

This statement is true. LinkedIn's advertising platform allows for robust retargeting capabilities. You can create Matched Audiences based on engagement with your Single Image Ads (e.g., users who clicked or viewed the ad), attendance or interest in your Event ads, and visits or engagement with your LinkedIn Company Page. These audiences are highly valuable for lead generation campaigns because they consist of users who have already shown some level of interest in your brand or content, making them more likely to convert.