Four girls (G1, G2, G3, G4) and three boys (b1, b2, b3) are to sit for a dinner such that no two boys should sit together nor two girls. If they are successively sitting, what is the position of b2 and G3?

A

$$5^{th}$$ and $$6^{th}$$

B

$$4^{th}$$ and $$5^{th}$$

C

$$3^{rd}$$ and $$4^{th}$$

D

$$2^{nd}$$ and $$3^{rd}$$