In order to eliminate piles, you must "<span>b. Keep flat surfaces clear" since if you start to accumulate things on a surface, especially things like letter, you will soon have a pile. </span>
As texas was defending it's claim to be a new and independent republic in 1836, a final crucial victory was won at Las cruces, so B. Hope this helped :)
C. Is a Factual Statement
This one is tricky, because scientific law can explain an observation, or be used to make a prediction, but I believe that C. is the most correct of the 4 answers.
Capitalism is based on individual initiative and favors market mechanisms over government intervention, while socialism is based on government planning and limitations on private control of resources.