Joann and Sana have $20$ dresses in total. Joann gives half of her dresses to Claire, and then she and Sana have $14$ dresses in total. How many dresses does Sana have? 
选项为:A:$$6$$  B:$$8$$  C:$$10$$  D:$$12$$  E:$$14$$  请回答其中一个选项.