Here's what I have for answer A. still need B.,C., and D.

C:16-39 Foreign Tax Credit Limitation. Tucson, a U.S. corporation organized in Year 1, reports the following items for a three-year period. ear 1 ear 3 Foreign tax accrual Foreign source taxable income Worldwide taxable income 400,000 1,000,000 S 100,000 $ 120,000 180,000 500,000 1,000,000 300,000 1,000,000 The foreign source and worldwide taxable income items are determined under U.S. law hat is Tucson's foreign tax credit limitation for each of the three years (assume a 34% U.S. corporate tax rate and that income from all foreign activities fall into a single basket)? b. How are Tucson's excess foreign tax credits (if any) treated? Do any carryovers remain c. How would your answers to Parts a and b change if the IRS determines that $100,000 d. What measures should Tucson consider if it expects its current excess foreign tax credit after Year 3 of expenses allocated to U.S.-source income should have been allocated to foreign- source income position to persist in the long-run