GRE Verbal Practice, Text Completion
By the mid-1700s the French government had begun a concerted effort to prevent famine and plague, having fully realized that the success of its ambitious state-run building projects ____________ the welfare of its people, particularly the labor-providing lower class.
The French government began its efforts to prevent famine and plague (which promote the general welfare) once it realized that a healthy pool of laborers was needed to ensure the success of its state building projects. In other words, success depended on the general welfare. The correct answer (best completion) is depended on.