Question

such estates go all to one person, and are in effect entailed and unalienable. source: an inquiry into the nature and causes of the wealth of nations in the sentence above, unalienable has the same or almost the same meaning as: nontransferable unauthorized nonflammable unfathomable

Explanation:

"Unalienable" means not able to be transferred, surrendered, or taken away. "Non - transferable" has a similar meaning. "Unauthorized" means not having official permission. "Nonflammable" refers to not being able to catch fire easily. "Unfathomable" means impossible to understand or comprehend.

Answer:

A. nontransferable