This would be Karl Marx! The most important book of his would the The Capital (Das Kapital in orginal German). <span>Socialist countries often said they're following Marxism (Or Marxism-Leninism)</span>
The following of world war 2
The Americans gained complete independence from Britain from the Treaty of Paris. The correct option among all the options that are given in the question is the last option or the fourth option. This treaty was signed in the year 1783. This treaty also ended the revolutionary war in America. I hope it helps you.
It’s in the picture to at least help you out from the best of my knowledge