Which of the following is a true statement?

• A remainder interest held by the decedent at the time of death is not included in the decedent's gross estate.

• The value of a remainder interest depends in part on the Section 7520 interest rate at the time of death.

• The value of a remainder interest in a life estate is independent of the age of the life tenant.

• The value of a life estate does not depend upon the age of the life tenant.

• None of the choices are true.