3. The product of the repeating decimals $0 . \overline{3}(=0.333 \cdots)$ and $0 . \overline{6}$ is ).
(A) $0 . \overline{18}$
(B) $0 . \overline{19}$
(C) $0 . \overline{2}$
(D) $0 . \overline{9}$
(E) None of the above answers is correct.
3. (C) Since $0 . \overline{3}=\frac{1}{3}, 0 . \overline{6}=\frac{2}{3}$, the product is $\frac{2}{9}$.