Diencephalon is referred to as the between brain.
The invention from the song dynasty that improved clocks was: The clock tower/clepsydra clock
This invention is the first type of clock that utilized the <em>escapement mechanism </em> that is applied by many European countries around 2 centuries later to produce their clocks.
The subject or subjects being observed in classic naturalistic observation may be unaware that they are being observed.
The correct option is (B).
<h3>What is naturalistic observation?</h3>
Naturalistic observation is a technique for seeing subjects in their natural setting.
The goal is to observe behavior in an unaltered natural environment.
Researchers may keep track of what they see by making notes or tallies.
Thus, the correct statement is (B) Maybe unaware that observation is being conducted.
Learn more about naturalistic observation, here:
brainly.com/question/8187021
The lords gave the Knights land and money for their protection and services.