Situation $9.$ A soil sample has a dry unit weight of $15k\frac{N}{m^3}$ and a void ratio

of $0\mathrm{.}50.$

Evaluate the specific gravity of the soil solids.

A$.2\mathrm{.}29$

C$.2\mathrm{.}44$

B$.2\mathrm{.}56$

D$.2\mathrm{.}65$