A total of n trucks and cars are parked in a lot. If the number of cars is \frac1 4 the number of trucks,and \frac2 3 of the trucks are pickups, how many pickups, in terms of n, are parked in the lot?
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A\frac{1}{6}{n}
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B\frac{5}{12}{n}
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C\frac{1}{2}{n}
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D\frac{8}{15}{n}
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E\frac{11}{12}{n}