The Summer of the Beautiful White Horse is written by William Saroyan. The story is about two Armenian boys – Aram and Mourad who belong to the Garoghlanaian family.

The correct answer is option 'D' - William Saroyan.

William Saroyan was an American playwright, novelist, and short story writer. He was born on August 31, 1908, in Fresno, California, and died on May 18, 1981, in Fresno. Saroyan is best known for his works that capture the essence of the human spirit and celebrate the resilience and endurance of the human condition.

"The Summer of the Beautiful White Horse" is a short story written by William Saroyan. It was first published in 1938 and later included in his collection of short stories titled "My Name Is Aram." The story is set in Fresno, California, during the Great Depression and revolves around a young boy named Aram Garoghlanian.

In the story, Aram recounts a memorable summer from his childhood when his cousin Mourad steals a beautiful white horse. The horse belongs to a wealthy neighbor, John Byro, who has mistreated the animal. Mourad and Aram take care of the horse, hiding it in a secluded barn and providing it with food and water. They plan to return the horse once it has regained its strength and beauty.

However, their plan is eventually discovered by their uncle Khosrove, who forces them to return the horse to its rightful owner. As they lead the horse back to John Byro's property, they encounter Byro's daughter, who is surprised and delighted to see her father's horse returned. The story ends with Aram reflecting on the beauty and innocence of the horse and the bittersweet memories of that summer.

"The Summer of the Beautiful White Horse" is a poignant coming-of-age story that explores themes of morality, responsibility, and the loss of innocence. Saroyan's writing style is characterized by its simplicity and lyrical beauty, capturing the emotions and experiences of his characters with great sensitivity.

In conclusion, William Saroyan is the author of "The Summer of the Beautiful White Horse," a timeless short story that continues to resonate with readers for its universal themes and heartfelt storytelling.

Option D