Answer:
An appurtenant easement - True.
Step-by-step explanation:
'Appurtenant easement' is illustrated as the legal right or easement to use the neighboring parcel of land that runs with the land. It allows the owners to access to adjoining land that runs with the owned property.
As per the question, 'an appurtenant easement' would be the right type of access rights that would grant Anna protection against the prospective purchaser. It would help her get the access to use the 500 feet parcel land that runs with her 50 acres of owned land and retain her authority over the frontage by providing access to lot owners. Therefore, the 'appurtenant easement' right would be considered true to grant the protection of her rights.