Answer: "With each hour-and-a-half orbit of Earth, Glenn watched the sun rise and set. "Five hours and 81,000 miles after he had taken off, John Glenn splashed down to a welcome..."
It allows a writer to achieve a sense of rhythm and order.
The answer is B
Orwell’s purpose is to persuade readers to use simple language and political writing. He achieve this by discouraging the use of worn out words and phrases.
Shadowy seems like the best fit of the choices.