You can upload up to 300,000 contacts for Contact Targeting.

Explanation: The statement is **TRUE**. LinkedIn allows users to upload up to 300,000 contacts for Contact Targeting. Contact Targeting enables advertisers to create highly customized ad campaigns by targeting specific individuals based on their email addresses or LinkedIn user IDs. By uploading a list of contacts, advertisers can tailor their campaigns to reach a known audience, such as existing customers, prospects, or leads. This feature is particularly valuable for retargeting campaigns, account-based marketing initiatives, or reaching specific segments of a company's target audience. With the capacity to upload a substantial number of contacts, advertisers have the flexibility to scale their campaigns and effectively engage with a sizable audience while maintaining precision and relevance. Therefore, the statement is **TRUE**, as LinkedIn allows users to upload up to 300,000 contacts for Contact Targeting, facilitating highly targeted and personalized advertising efforts.