The function $f_{n}(x)= n \sin (x/n)$
- Does not converge for any $x$ as $n \rightarrow \infty$
- Converges to the constant function $1$ as $n \rightarrow \infty$
- Converges to the function $x$ as $n \rightarrow \infty$
- Does not converge for all $x$ as $n \rightarrow \infty$