In a school, the ratio of the number of boys and girls is 3:4 respectively. If the number of boys increased by 10% and the number of girls increased by 15%, then what is the new ratio of the number of boys and girls?

A

$$\frac{33}{45}$$

B

$$\frac{35}{46}$$

C

$$\frac{33}{46}$$

D

$$\frac{46}{33}$$