The answer is A. a single Slavic Group
The reason being is the most people in Europe speak Russian which falls into the Slavic category
Answer:
A. A state has the ability to nullify another state's law if that state finds another state's law unconstitutional.
You could explain how it was on the battle grounds. :) . Also, a lot of soldiers hid in ditches to escape grenades and other bombs. Hope this helped!
The answer is "D". They have been made over time.