MCQ
Let $\text{A}=\{\text{x}\in\text{R}:\text{x}\neq0-4\leq\text{x}\leq4\}$ and $\text{f}:\text{A}\in\text{R}$ be defined by $\text{f(x)}=\frac{|\text{x}|}{\text{x}}$ for $\text{x}\in\text{A}$ Then $A:$
- ✓$[1,-1]$
- B$\big[\text{x}:0\leq\text{x}\leq4\big]$
- C$\{1\}$
- D$\{\text{x}:-4\leq\text{x}\leq0\}$