Meagellas dad's ungly/horrible/smelly
The answer for this question is C. The Domino Theory. This theory states that if a country came under communist rule, its neighboring countries and regions would follow as well. This theory is what the US used as a reason to intervene in the different affairs of various countries to stop or prevent communism from spreading.
<span>C.the railroads had to pass over mountains and rivers</span>
They are most described as a mixed economy