I honestly don’t know that one
Answer: number (a) rise of fascists dictatorships
The correct answer is 2. the growth of labor unions. These unions organized strikes and fought for the workers. Monopolies were bad for them while middle class and assembly lines were not that important for the mining industry since there's not much to transport or manufacture.
Del Toro's supernatural setting, one in which ghost stories and superstition are fundamental to the movie's plot and central themes, adds a beautiful backdrop to the film. The doctor of the orphanage keeps a collection of jars with preserved infants dead from spina bifida: hence the “Devil's Backbone”