alllen , a fiscal year taxpayer is trying to determine the final date for submitting his tax return. he is on a fiscal year of april 1 march 31 . which of the following would allow Allen o determine his due date?

a.the due date will be 3 1/2 months after the end of allens fiscal year.

b. the due date is always april 15

c. the due date will be april 15 unless th 15th falls on a saturday , sunday or legal holliday?

d.the due date will be the last day of the month following the end of his fiscal year