I think the correct answer from the choices listed above is the last option. Market economies combine <span>elements of traditional and planned economies.</span> It<span> is an </span>economic<span> system in which </span>economic<span> decisions and the pricing of goods and services are guided solely by the aggregate interactions of a country's individual citizens and businesses. </span>
The understanding of gravity was essential in the developmentof Albert Einstein theory of relativity. Which describe relationships between matter and motion.
