CREATE TABLE table_203_175 (id DECIMAL, "rank" TEXT, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

which nation was the only one to receive 3 medals ?
SELECT "nation" FROM table_203_175 WHERE "total" = 3
SELECT "nation" FROM "table_203_175" WHERE "total" = 3