Which one of the following has the greatest value?　 
选项为:A:$$\frac{3}{5} \times \frac{2}{3}$$  B:$$\frac{5}{3} \times \frac{1}{2}$$  C:$$\frac{3}{4} \times \frac{2}{3}$$  D:$$\frac{4}{3} \times \frac{1}{2}$$  请回答其中一个选项.