The correct answer is C.
In fact the other options provided state the weaknesses that the Europeans encountered in their conflicts against the native Americans. They did not know the land, whose wilderness added extra dificulties for strangers, and in the case they needed reinforcements, the process of bringing them from Europe was long and costly.
But these weaknesses were rapidly outbalanced due to the huge superiority that the Europeans had in terms of weaponry if compared to the natives. They already knew gunpowder, while, natives Americans were still using bows and arrows. Moreover, the Europeans had properly organized armies, with its hierarchies, different units, experienced and skilled commanders, etc.
Your answer would be: B there have been ongoing conflicts between Israel and the Arab world.
Monte Verde es un sitio arqueológico en el sur de Chile, ubicado cerca de Puerto Montt, en el sur de Chile, que data de 18,500 cal.
D. Tobacco, rice and indigo served as the major staple crops.
These three things were the main exports in the southern colonies during the 17th century. Especially tobacco, it made a ton of profit. :)
The american west, california primarily