Answer:
1. Mexican Government gave away land grants so people could use the land to raise animals and grow crops.
2. Trade between other countries were allowed so that ranchos could buy and sell goods.
Hope this helped :)
The Missouri Compromise of 1820 involved land gained from the Louisiana Purchase. The Louisiana Purchase was the purchase of land from France in 1803 that consisted of over 530 million acres.
I'm not 100% sure on what the answer is but I think its either B or C.