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! :)
Answer:
My suggestion, make a petition.
Explanation:
This is a great practice for trying to change things in society, and can also prove a point that people want a prom
Answer:
Archetypes basically create a stronger relationship with both the reader and the character in a said story.
Answer:
Hunter asked, "What is going to happen with this crazy weather?".
Explanation:
I'm assuming you're improving the sentence. commented should be replaced with asked, since he is asking a question. Then you just have to add punctuation to the dialogue.
