In Shoetown, a rancher takes $0 worth of inputs and produces animal skins, which he sells to the tanner for
$400. The tanner then sells leather to the shoemaker for $700, and the shoemaker then sells $1200
worth of shoes. The value added from these transactions is

A) $ 800. B) $1000. C) $1200. D) $2300. E) $2500.