4 In 1922, Major William A. Welch—director of the Palisades Interstate Park Commission—picked up on the idea and suggested that it be printed in the New York Evening Post. In 1925, a two-day Appalachian Trail Conference was held in Washington, DC. Many government officials supported the idea, and the first section of trail opened in 1928. The trail was completed in 1937. The Appalachian Trail was one of the first trails to be included in the National Trail System in 1968. Which of these BEST describes the organization of paragraph 4?
A) cause and effect
B) chronological order
C) compare and contrast
D) problem/solution order

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