Explanation:

- The Oraon, an indigenous tribe in India, traditionally call their youth dormitory Dhumkuria.

- Option 1: Dhumkuria - the correct name for the Oraon youth dormitory.

- Option 2: Gotul - Refers to a youth dormitory system among the Gond and Muria tribes, not the Oraon.

- Option 3: Gitiora - Not associated with any known tribal youth dormitory system.

- Option 4: Arichu - Not a term linked with known dormitory practices.