Which of the following statement is true?

I. $$\frac{1}{2} + \frac{1}{6} + \frac{1}{12} = \frac{3}{4}$$
II. $$\frac{1}{6} + \frac{1}{12} + \frac{1}{20} = \frac{3}{5}$$

A

Neither I nor II

B

Only II

C

Only I

D

Both I and II