The correct answer is D) government ownership of factories.
The goal was supported by socialists, but not by Samuel Gompers was the government ownership of factories.
Samuel Gompers (1850-1924) was the President of the American Federation of Labor (AFL). As the Union leader he was, he invited the unions to exert economic coercion through strikes, in a time that unions were greatly critiqued by owners. He always rejected the idea of government ownership of factories.