Which of the following films was Don Bluth both the writer, director, and producer for?

The answer is "All Dogs Go To Heaven." Don Bluth served as the writer, director, and producer for this film. Released in 1989, the animated musical comedy-drama tells the story of a lovable dog named Charlie who returns from heaven to seek revenge on his killer while ultimately discovering the true meaning of friendship and redemption. As the creative force behind the film, Bluth had complete control over its script, direction, and production, showcasing his versatility and talent in multiple roles.