CREATE TABLE table_name_78 (nation_of_citizenship VARCHAR, type_of_vehicle VARCHAR, year VARCHAR)

What Nation of citizenship has a stock car vehicle with a year of 1999?
SELECT nation_of_citizenship FROM table_name_78 WHERE type_of_vehicle = "stock car" AND year = 1999
SELECT "nation_of_citizenship" FROM "table_name_78" WHERE "stock car" = "type_of_vehicle" AND "year" = 1999