Final answer:
Prospective buyers can only reserve lots, without acquiring property rights, before a subdivider receives the Commissioner's public report.
Step-by-step explanation:
In the context of subdividing land, developers must comply with certain regulations before they can begin selling individual parcels. The only thing a subdivider can sell before receiving the Commissioner's public report is a lot reservation. This essentially allows prospective buyers to reserve a lot within the development, likely for a fee, which indicates their interest in purchasing the property once all the necessary approvals have been granted. Unlike the other options, such as estates of inheritance, undivided interests, or leasehold interests, a lot reservation does not confer any ownership or substantial property rights; it is merely a commitment between the developer and the potential buyer.