There are four books on my shelf. The almanac and the dictionary together weigh $$4310\text{g}$$. The biography and the cookbook together weigh $$2325\text{g}$$. If the almanac and the biography together weigh $$2795\text{g}$$, what is the weigh of the cookbook and dictionary together? 
选项为:A:$$2620\text{g}$$  B:$$3270\text{g}$$  C:$$3840\text{g}$$  D:$$4100\text{g}$$  请回答其中一个选项.