Answer:
the answer is
1,3,4
Dwarf planets orbit the Sun.
Dwarf planets are round.
Pluto is a dwarf planet.
i'm sure that the answer is these.
In "Hills like white elephant":
The style is direct, and the content is direct.
The style is simple, while the content is complex.
Ernest Hemingway, the author, is known for his journalistic and no nonsense writing style. This style is present in the story.
The writing style may be sparse, simple, and unornamented but it effectively touch and engage the reader's mind and heart.