A problem in Mathematics is given to three students A, B and C whose chances of solving it are $$\frac{1}{3}, \frac{1}{4}$$ and $$\frac{1}{2}$$ respectively. What is the probability that the problem will be solved by at least one of them?

A

$$\frac{3}{4}$$

B

$$\frac{2}{3}$$

C

$$\frac{4}{5}$$

D

$$\frac{5}{6}$$