给我答案---**Question Stem:** 4. 不等式 $\frac{x-4}{x-1}$ 2 的解集是 ( ) **Note on Missing Information:** The inequality operator between $\frac{x-4}{x-1}$ and 2 is missing in the image. The question states "不等式" (inequality), implying a comparison operator (e.g., <, >, ≤, ≥) should be present. Based on common mathematical problems of this type and the given options, it is highly probable that the intended inequality is $\frac{x-4}{x-1} \leq 2$. **Options:** A. {x | -2 ≤ x ≤ 1} B. {x | x < -2} C. {x | -2 ≤ x < 1} D. {x | x > 1}

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