If $f(x)=x^2\sin \frac{1}{x}$,when $x\neq0$,then the value of the function f at $x=0$,so that the function is continuous at $x=0$,is

Question

$$\begin{array}{1 1}(A)\;0 & (B)\;-1\\(C)\;1 & (D)\;none\;of\;these\end{array}$$