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:
People must appreciate what they have and enjoy their lives.
Explanation:
Answer:
it evokes the feeling of honoring the dead
Romeo and juliet act 1, scene 5, page 4 :)