付费媒体管理员有哪些类型？请选择三个答案。

The correct answers are Landing Page Admin, Sponsored Content Poster, and Lead Gen Forms Admin. These are specific roles within LinkedIn Campaign Manager that grant permissions to manage different aspects of paid media campaigns. A Landing Page Admin can manage and link landing pages to ads. A Sponsored Content Poster can create and publish sponsored content. A Lead Gen Forms Admin can create and manage lead generation forms used in campaigns. Demand Generation Admin and Company Page Admin are not specific paid media administrator roles within Campaign Manager; Demand Generation is a broader marketing strategy, and Company Page Admin manages the organic company page, not necessarily paid advertising.