Which of the following are characteristics of the unified tax system that are common to both testamentary transfers and lifetime gifts?

1. Availability of the marital deduction
2. Use of adjusted taxable gifts in calculation of the tax
3. Availability of the annual exclusion amount
4. Availability of an applicable credit amount

A)

I, II, and III

B)

I and IV

C)

I, II, and IV

D)

III and IV