What are the genres of Lu Xun's articles: "Self-Inscribed Portrait", "Community Opera", and "On the Fall of Lei Feng Tower"? Connected questions.

Urgent, urgent, urgent, urgent

"Self-titled Portrait" ---Poetry (everyone who has seen this knows it is poetry)

"Social Opera"---Prose (has the characteristics of prose, mainly highlighting The friendship between children)

"On the Fall of Lei Feng Tower"---Essay (The elimination method revealed hunger)