A \( \mathbb{R} \) ; \( \mathbb{R} \)
B \( (0, \infty) \) ; \( [\frac{7}{3}, \infty) \)
C \( [0, \infty) \) ; \( [\frac{3}{7}, \infty) \)
D \( \mathbb{R} \) ; \( [0, \infty) \)
Correct Answer: Option A
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