How many season 4 appearances are there by Mrs. Jennifer Knight?
CREATE TABLE table_26240046_1 (
    season_4 INTEGER,
    character VARCHAR
)
SELECT MIN(season_4) FROM table_26240046_1 WHERE character = "Mrs. Jennifer Knight"
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: How many season 4 appearances are there by Mrs. Jennifer Knight? ### Input: CREATE TABLE table_26240046_1 (
    season_4 INTEGER,
    character VARCHAR
) ### Response: SELECT MIN(season_4) FROM table_26240046_1 WHERE character = "Mrs. Jennifer Knight"