I believe the answer is E. League of Nations.
Im not sure if this is right but here. <span>Mastered Greek, Latin, help discover Philosophers, technical thinking that required careful observation and mathematics, telescopes, microscopes.
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World-systems theory<span> (also known as </span>world-systems analysis<span> or </span>the world-systems perspective), <span>is a multidisciplinary, macro-scale approach to </span>world history<span> and </span>social change<span> which emphasizes the </span>world-system<span> (and not </span>nation states<span>) as the primary (but not exclusive) unit of </span>social analysis<span>.</span>
Reformers in the U.S. adopted the idea that students should have access to the same content at similar grade levels.
In economics there are four different types of market structures. They are as followed:
1) Perfect competition- This allows for businesses to compete against each other for consumers.
2) Monopoly- This is when one business or corporation corners a market. This occurs when a business is the only supplier of a good/service.
3) Oligopoly- This is when a small amount of businesses control a market/product.
4) Imperfect competition
In your question then, the correct answers are : Monopoly, perfect competition, and oligopoly.
