Who is no. 79 directed by?
CREATE TABLE table_25538 (
    "No." real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "U.S. viewers (million)" text,
    "Rank (week)" text,
    "Original air date" text
)
SELECT "Directed by" FROM table_25538 WHERE "No." = '79'
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: Who is no. 79 directed by? ### Input: CREATE TABLE table_25538 (
    "No." real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "U.S. viewers (million)" text,
    "Rank (week)" text,
    "Original air date" text
) ### Response: SELECT "Directed by" FROM table_25538 WHERE "No." = '79'