What is the production code of the episode with an original airdate of december 01?
CREATE TABLE table_25691838_12 (
    production_code VARCHAR,
    original_airdate VARCHAR
)
SELECT production_code FROM table_25691838_12 WHERE original_airdate = "December 01"
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: What is the production code of the episode with an original airdate of december 01? ### Input: CREATE TABLE table_25691838_12 (
    production_code VARCHAR,
    original_airdate VARCHAR
) ### Response: SELECT production_code FROM table_25691838_12 WHERE original_airdate = "December 01"