Which one of the following subjects is under the Union List in the Seventh Schedule of the Constitution of Indian?

1. The Seventh Schedule of the Constitution of India divides legislative powers between the Union and the States into three lists: Union List, State List, and Concurrent List. 2. 'Regulation of labour and safety in mines and oilfields' is explicitly mentioned under Entry 55 of the Union List. 3. 'Agriculture' (Entry 14) and 'Fisheries' (Entry 21) are under the State List. 4. 'Public health and sanitation' (Entry 6) is under the State List. 5. Therefore, 'Regulation of labour and safety in mines and oilfields' is under the Union List.