During Halloween, candy makers accurately anticipate the increased demand for candy for all of the parties and Trick-or-Treat. Manufacturers work hard to make sure the supply of candy and the demand for candy increase the same amount. As a result of Halloween and the careful planning of manufacturers of candy, the price of candy and the quantity of candy . A) falls; decreases B) rises; increases C) does not change; increases D) increases; does not change

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the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.