During the year, Green Corporation (a U.S. corporation) has U.S.-source income of $1,500,000 and foreign income of $1,000,000. The foreign-source income generates foreign income taxes of $480,000. The U.S. income tax before the foreign tax credit is $850,000. Green Corporation's foreign tax credit is:
a) $340,000.
b) $480,000.
c) $850,000.
d) $1,000,000.