The Answer is B) hope this helps.
The answer is D because you want to have a control group! Hope it helps!
Answer:
Political boundaries are the dividing lines between countries, states, provinces, counties, and cities. These lines, more often called borders, are created by people to separate areas governed by different groups. ... Political boundaries change over time through wars, treaties, and trade
I picked number two and Delayed Passive Aggressiveness is "indirect resistance to the demands of others" <span>Delayed Passive Aggressiveness (DPA) is the resistance of demands of others which is meaning not being able to listen to other people.
Hope this helps!</span>