Which Tax Rule Applies to an Excess Foreign Tax Credit

Multiple Choice

Which tax rule applies to an excess foreign tax credit (FTC) that arises in 2020?

A) The excess FTC is first carried back to 2019 and any excess is carried forward for 10 years.
B) The excess FTC is first carried back to 2018, then 2019, and any excess is carried forward for 20 years.
C) The excess FTC is first carried back to 2017, then 2018, then 2019, and any excess is carried forward for five years.
D) The excess FTC is carried forward 10 years, with no carryback allowed.