Aye dont use essaytyper fam
this has been a PSA
Where is the story at how can I help you
D. a subject for a student = 4(9) - 20; = 36 - 20; = 16
It would look like Modern would be the participle.
Because Modern modifies what the Essay is, Essay is the word modified.
I'm pretty sure this is right, since no other word in the sentence seems to modify anything.
