The correct choice is B
3x^2 + 4x + 2
The vector field

has curl

Parameterize
by

where

with
and
.
Take the normal vector to
to be

Then by Stokes' theorem we have



which has a value of 0, since each component integral is 0:




Answer is (-3,1) x=-3 y=1
30,840 is expanses for by place value is 30,000 + 800 + 40. Add them together and you get 30,840.