The era of U.S. expansion into western frontier is described by the term ...

• A. Yellow Journalism
• B. Victory Gardens
• C. Vietnam War
• D. Westward Expansion

Answer: (D)

Westward Expansion describes the era when Americans moved into and settled the western frontier, driven by goals like farming, resource gain, and the idea of Manifest Destiny. This period includes the settlement of lands through routes like the Oregon Trail, the acquisition of new territories, and policies such as the Homestead Act that encouraged growth on western lands. The other options refer to different topics: Yellow Journalism relates to sensationalist media in the late 19th century, Victory Gardens were wartime food programs during the World Wars, and the Vietnam War was a mid- to late-20th-century conflict in Southeast Asia. So, for describing the era of expanding into the western frontier, Westward Expansion is the best fit.