Carmel draws a plan of her school using a scale of $$1\text{cm}$$ to $$5\text{m}$$.  On the plan, the playground is $$6\text{cm}$$ long.  What is the real length of the playground? 
选项为:A:$$6\text{m}$$  B:$$30\text{m}$$  C:$$11 \text{m}$$  D:$$7 \text{m}$$  E:$$45\text{m}$$  请回答其中一个选项.