Explanation:
Prithivi Narayan Shah as democratic King:
He initiated the invasion campaign which would eventually make a country called Nepal. Prithivi Narayan Shah is known as a democratic King in the history of the Shah Dynasty because he assumed that the people should have a proper role in the ruling of the state.
I believe the answer is Shaping.
Shaping is a reinforcement technique which use a reward that given gradually after the subject is showing a certain desired traits.
On parakeets, this could be done by giving them a food reward everytime they move their head closer to the place where we want it to be (closer to your cheek)
The answer is the German tribe called the Visigoths.
It's d all of the above
it's a evil practice and mindset still going on in some indians