Jin loves carrots! Yesterday she ate $$\frac{1}{4}$$ of her carrots, and today she ate $$\frac{2}{7}$$ of the number of she ate yesterday. She ate 10 carrots today. Yesterday she have started with  carrots. 
选项为:A:$$36$$  B:$$48$$  C:$$60$$  D:$$72$$  E:$$140$$  请回答其中一个选项.