Who originally created the latifundia system?
a. the mexican farmers
b. the romans
c. the spanish conquistadors
d. the u. s embassy
i need this answer asap

Plz put the answer choices thx.

Build a market-oriented economy;

The circumcenter is  equidistant  from each vertex of the triangle. the circumcenter is at the  intersection  of the  perpendicular bisectors  of the triangle's sides. the circumcenter of a right triangle falls on the side opposite the right  angle. the incenter  of a triangle is always inside it.