The answer is D.
"Keep", "factor", and "calculate" are all verbs in the list of things the new system allows teachers to do. The other sentences are inconsistent with their list of verbs/adjectives/nouns. Thus, option D is the only one that is grammatically correct.
I am not too good at explaining, so let me know if you are still confused.
Hope this helps! :)
Option A will only work if the sentence was "Each size of a pallet is approximately as large as the size of a refrigerator..."
Answer: nice proud of you
Explanation:
The answer is: D) He can change from first-person to third-person point of view
When Jerome change the point of view of the story from first-person, where we can follow the narration with the character to third-person point of view where the reader receives a view more external an objective of the situation it add the fictional color to the story.
Answer:
I would choose option four or two. Hope this helps! =)