Final answer:
The McMillan Plan is a development plan for Washington in the early 1900s inspired by the City Beautiful movement. It focused on incorporating parks, wide boulevards, and suburbs into city planning, particularly influencing the design of Washington, D.C.'s National Mall.
Step-by-step explanation:
What is the McMillan Plan?
The McMillan Plan is a plan for the development of Washington in the 1900s, making the first option the correct answer. The plan was inspired by the City Beautiful movement that began with architects and urban planners like Daniel Burnham and Frederick Law Olmsted. Influenced by the harmonious design showcased at the Columbian Exposition, they sought to transform urban areas into more visually appealing and functional spaces. The McMillan Plan aimed to modernize the nation's capital by expanding green spaces, creating wide, tree-lined boulevards, and encouraging the development of suburbs to reduce inner-city congestion. It significantly shaped the Washington, D.C., we know today with its emphasis on classical architecture and urban greenspace, particularly evident in the city's iconic National Mall. These tenets of urban planning paved the way for many similar developments in cities across the United States during the twentieth century.