Final answer:
Two phrases that show Hemingway's style of repetition are option a and option d, which both feature the repetition of a subject followed by a descriptive statement, exemplifying Hemingway's minimalist and powerful prose.
Step-by-step explanation:
Ernest Hemingway was a modernist American novelist known for his distinctive minimalist style, which often included the use of repetition. Hemingway's technique of repeating words and phrases can contribute to the mood or theme of his stories, creating powerful emotional effects. This style is rooted in his background as a journalist and is evident throughout his body of work.
Options a ("The sun was hot, the sun was really hot.") and d ("The waves crashed, the waves were powerful.") show Hemingway's style of repetition with the repeated focus on the sun and the waves, respectively. Both phrases involve the repetition of a subject (the sun, the waves) followed by an intensification or descriptive statement about that subject, which is a hallmark of Hemingway's prose. This technique allows Hemingway to emphasize a particular image or emotion in his writing.