Land and things permanently attached to the land, such as trees, buildings, and stationary mobile homes are . A. real property
B. cyber property
C. personal propertyD. intellectual property

A. real property

Explanation:

These are known as real property. Like mentioned in the question, this is land  and all of the property attached to it, this includes any and all subsets of land that have been improved through any form of legal human actions. There are many things that are included in a piece of land that can be considered real property such as buildings, ponds, canals, roads, and machinery, among other things.

d. all of the above are true.