Last year, at the school where Gill teaches Mathematics, $$315$$ out of the $$600$$ pupils were girls. This year, the number of pupils in the school has increased to $$640$$. The proportion of girls is the same as it was last year.  How many girls are there at the school this year? 
选项为:A:$$339$$  B:$$338$$  C:$$337$$  D:$$336$$  E:$$335$$  请回答其中一个选项.