In the expression $$1□2□3□4$$ each $$□$$ is to be replaced by either $$+$$ or $$\times$$. What is the largest value of all the expressions that can be obtained in this way? 
选项为:A:$$10$$  B:$$14$$  C:$$15$$  D:$$24$$  E:$$25$$  请回答其中一个选项.