Felix and Marmalade are two cats. Together they weigh $$10\text{kg}$$.  Felix weighs $$4\text{kg}$$ less than Marmalade. How much does Marmalade weigh? 
选项为:A:$$3\text{kg}$$  B:$$6\text{kg}$$  C:$$7 \text{kg}$$  D:$$9\text{kg}$$  E:$$14 \text{kg}$$  请回答其中一个选项.