Desayuno De Chile S

Desayuno de Chile S.A., an export company in Chile, and Deli Source Inc., an import firm in the United States, enter into a contract. When Deli breaches the contract, Desayuno obtains an award of damages in a Chilean court. Desayuno then asks a U.S. court to enforce the award. The U.S. court defers to and enforces the Chilean court's decree. This is

A) expropriation.
B) the act of state doctrine.
C) the doctrine of sovereign immunity.
D) the principle of comity .