Which of these fractions expressions has the \textbf{smallest} value? 
选项为:A:$$\frac{1}{6}+\frac{1}{3}$$  B:$$\frac{1}{3}-\frac{1}{6}$$  C:$$\frac{1}{3} \times \frac{1}{6}$$  D:$$\frac{1}{3} \div \frac{1}{6}$$  E:$$\frac{1}{6} \div \frac{1}{3}$$  请回答其中一个选项.