Organize the following expressions from greatest to least by number of terms:
i: 6x2
ii: 18x2 + 5ab − 6y
iii: 8a − 5
iv: 4x3 + 3x2 − x − 4
a: ii, iii, iv, i
b: iv, ii, i, iii
c: iii, ii, i, iv
d: iv, ii, iii, i
i think its d because the last one seems to have the most terms and it looks right but idk