Answer: d) none of these
Step-by-step explanation:
[tex]a)\quad \displaystyle \lim_{x \to 1} f(x)=\large\boxed{1} \\\\\\b)\quad f(1)=\large\boxed{3}\\\\\\c) \displaystyle \lim_{x \to 1} f(1) \neq f(1) \quad \text{therefore it is not continuous}\\\\\\d) \displaystyle \lim_{x \to 1} f(1) = 1,\quad f(1)=3\quad \longrightarrow \quad \displaystyle \lim_{x \to 1} f(1) \neq f(1)[/tex]
