I need american history help.

I need help on TWO american history questions I'm stuck on?

• I can't seem to figure them out, a little help please? 1. Which of the following reasons was NOT a cause to the end of the cattle boom? A. Barb wire fencing limited access to land and water on the open range. B. Competition over the use of the open range led to range wars among ranchers. C. Long drives became too dangerous for cowboys, because of constant Native American attacks. D. Greedy ranchers crowded the open range with too many cattle. 2. Western mining camps ........... A. were eventually abandoned by the miners once all of the minerals were exhausted. B. encouraged Asians, African Americans, and other minorities to settle. C. often practiced discrimination. D. became more peaceful because of the vigilante It would mean a lot if you could help!

• Answer:

  1) C 2) A