Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : The Old Grey Hare is a 1944 Warner Bros. cartoon in the Merrie Melodies series, directed by Bob Clampett, written by Michael Sasanoff, music by Carl W. Stalling.
Answer : Warner Bros.
A:
Which production company is involved with The Old Grey Hare?