15 small rods, each of length $$23\frac{2}{7}$$ m are joined to make a big rod. What then is the length of the big rod?

A

$$349\frac{5}{7}$$ m

B

$$349\frac{1}{7}$$ m

C

$$349\frac{2}{7}$$ m

D

$$349\frac{3}{7}$$ m