$$2003-AMC12A-10$$  Al, Bert, and Carl are the winners of a school drawing for a pile of Halloween candy, which they are to divide in a ratio of $$3:2:1$$, respectively. Due to some confusion they come at different times to claim their prizes, and each assumes he is the first to arrive. If each takes what he believes to be the correct share of candy, what fraction of the candy goes unclaimed?  Al、$$Bert$$ 和 Carl 是学校为一堆万圣节糖果绘制的获胜者，他们将分别以 3:2:1 的比例分配这些糖果。 由于一些混乱，他们在不同的时间来领奖，每个人都假设他是第一个到达的人。 如果每个人都拿走他认为正确的糖果份额，那么有多少糖果无人认领？
选项为:A:$$\frac{1}{18}$$  B:$$\frac{1}{6}$$  C:$$\frac{2}{9}$$  D:$$\frac{5}{18}$$  E:$$\frac{5}{12}$$  请回答其中一个选项.