Who directed the episode with a production code of 4WAB05?
CREATE TABLE table_2290 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directedby" text,
    "Writtenby" text,
    "Originalairdate" text,
    "Production code" text,
    "U.S. viewers (million)" text
)
SELECT "Directedby" FROM table_2290 WHERE "Production code" = '4WAB05'
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 directed the episode with a production code of 4WAB05? ### Input: CREATE TABLE table_2290 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directedby" text,
    "Writtenby" text,
    "Originalairdate" text,
    "Production code" text,
    "U.S. viewers (million)" text
) ### Response: SELECT "Directedby" FROM table_2290 WHERE "Production code" = '4WAB05'