$A$ company manufactures cassettes. Its cost and revenue functions are $C(x) = 26000 + 30x$ and $R(x) = 43x$,respectively,where $x$ is the number of cassettes produced and sold in a week. How many cassettes must be sold by the company to realize some profit?
- A$x > 2000$
- B$x < 2000$
- C$x = 2000$
- D$x \leq 2000$
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