Which author is known for humorous short stories about the American West and popularizing the use of regional dialects?

The author known for humorous short stories about the American West and for popularizing the use of regional dialects is Bret Harte. Harte's work often depicted the life and character of the American West during the Gold Rush era, capturing the unique personalities and dialects of the region. His stories, such as "The Luck of Roaring Camp" and "The Outcasts of Poker Flat," blend humor with the realities of frontier life, showcasing the vernacular speech of the people living in those areas. This use of regional dialects helped to create a more authentic and relatable depiction of the American West, allowing readers to experience the culture and societal norms of that time period more vividly.

Although other authors in the choices have also contributed significantly to American literature, their focus differs. For instance, Mark Twain is renowned for his regional writing as well, particularly in the context of the Mississippi River, but he is primarily recognized for his satirical takes on society and human nature. Willa Cather is celebrated for her novels about the Great Plains and the experiences of immigrants in rural America, while O. Henry is known for his short stories and clever twist endings, rather than a specific focus on the American West or regional dialects. Thus, Bret Harte