The average age of 35 persons is 40 years. 5 new persons with an average age of 35 years joined them. The average age of all the persons is:

A

$$39\frac{3}{8}$$ years

B

$$39\frac{1}{8}$$ years

C

$$39\frac{7}{8}$$ years

D

$$39\frac{5}{8}$$ years