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! :)
tag for this is do I ?
Explanation:
plz Mark me as brainliest
Any thing u have to write or it Jus has to be about that
<span>"I thought I would be bored by the Shakespeare play, but I was enthralled the whole time"
this is the correct use of the word enthralled as enthralled means to excite and captive the attention of someone or thing, and as you can see in the sentence that he was originally expecting to hate the play, but he uses the word "but" which negates the previous statement and presumably anything followed by the but would be along the lines of him actually liking the play</span>