Final answer:
José is a widower and is not subject to any gift tax as he meets the requirements for a marital exception.
Step-by-step explanation:
In this case, José sells land to his daughter Linda for $50,000, which is less than the fair market value of $100,000. Typically, when someone sells an item for less than its fair market value, it is considered a gift for tax purposes.
However, in this scenario, José is a widower and is not subject to any gift tax as he meets the requirements for a marital exception. The marital exception allows certain transfers of property between spouses to occur without incurring any gift tax.