In 2014, the U.S. President declared a federal disaster in California due to wild fires. Helen lives in the affected area and lost her home in the fires. What choice does she have regarding when she can claim the loss on her tax return?

a) It must be claimed in 2013 if the return has not been filed by the date of the loss.

b) It must be claimed in 2014 if the loss is greater than Helen's modified adjusted gross income.

c) It may be claimed in 2015 if an election is filed with Helen's 2014 return.

d) It may be claimed in either 2013 or 2014.