All $x$ satisfying the inequality $(\cot^{-1} x)^2 - 7(\cot^{-1} x) + 10 > 0$ lie in the interval
- A$(-\infty, \cot 5) \cup (\cot 4, \cot 2)$
- B$(\cot 2, \infty)$
- C$(-\infty, \cot 5) \cup (\cot 2, \infty)$
- D$(\cot 5, \cot 4)$
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