In which county is the city/town of Halden located?
CREATE TABLE table_157826_1 (
    county VARCHAR,
    city_town VARCHAR
)
SELECT county FROM table_157826_1 WHERE city_town = "Halden"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: In which county is the city/town of Halden located? ### Input: CREATE TABLE table_157826_1 (
    county VARCHAR,
    city_town VARCHAR
) ### Response: SELECT county FROM table_157826_1 WHERE city_town = "Halden"