Relationship between dry density $$\gamma$$ percentage air voids $$n_{a}$$, water content $$\omega$$ and specific gravity G of any soil is

A

$$\gamma_{d}=\frac{(1+n_{a})Gr_{w}}{1+wG}$$

B

$$\gamma_{d}=\frac{(1+n_{a})Gr_{w}}{1-wG}$$

C

$$\gamma_{d}=\frac{(1-n_{a})Gr_{w}}{1+wG}$$

D

$$\gamma_{d}=\frac{(1-n_{a})Gr_{w}}{1-wG}$$