A small manufacturing facility is being planned that will feed parts to three heavy manufacturing facilities. The locations of the current plants with their coordinates and volume requirements are given in the following table: Use the centroid method to determine the best location for this new facility.

Plant Location	Coordinates	Volume (parts per year)
linden	300320	4000
timehri	375470	6000
georgetown	470180	3000

answers:

a. 470180

b. 300320

c.374357

d. none