就领英而言，有哪四种思想领导力画像？请选择所有适用选项。

The four thought leadership archetypes on LinkedIn are Envisioner, Guide, Promoter, and Illuminator. The Envisioner focuses on future trends and possibilities, offering a forward-looking perspective. The Guide provides practical advice and actionable insights, helping others navigate challenges. The Promoter champions new ideas and advocates for change, encouraging adoption. The Illuminator sheds light on complex topics, simplifying them for a broader audience. "Coach" and "Professor" are not recognized as distinct thought leadership archetypes within LinkedIn's framework; while a thought leader might embody coaching or teaching qualities, these are not the primary classifications LinkedIn uses.