Answer:
a. conditional estate
Step-by-step explanation:
Conditional estate is a term that refers to a private property that is limited to an individual and their particular heirs. This term is enforced by law, making it illegal for any activity that does not recognize the concepts of conditional estate. The owner of a conditional real estate property has the same interest as the owner of a simple and absolute rate; only such interest is subject to a condition that may result in termination of interest.