I'll give you a question, please answer with step-by-step reasoning process.
The aboriginal people ended up being displaced by settlers who justified themselves with the fact that the displaced people didn't have a formal system to do what?\nOptions:\n- fight back\n- spend time\n- own home\n- talk to each other\n- own land

own land
Being displaced means moving from one palce to another.

People living at one place since the beginning usually have the right over that piece of land.

Invaders often conquer these lands and take it as their own.

.

The final answer: own land