A. logically sounds the best since about 60,000- 70,000 Texas mean joined the Confederacy.
The Quartering Act (1765)
The Stamp Act (1765)
The Townshend Acts (1767)
Boston Massacre (1770)
Hope this helps! :)
The best and most correct answer among the choices provided by the question is the third choice "natural monopolies"
Natural monopolies<span> arise where the largest supplier in an industry, often the first supplier in a market, has an overwhelming cost advantage over other actual or potential competitors; this tends to be the case in industries where fixed costs predominate.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!