Final answer:
Upon the death of a life tenant, the life estate usually reverts back to the grantor, unless a remainder interest is otherwise specified.
Step-by-step explanation:
Once the life tenant dies, the life estate portion typically reverts back to the grantor, unless otherwise specified by the remainder interest. A life tenancy is an interest in real property which lasts for the duration of a person's life - in this case referred to as the life tenant. After the death of the life tenant, the property either reverts back to the grantor or passes to a third person, known as the remainderman. The correct answer to the question is c. Grantor.