contestada

What are pO and p'O at the 9-m depth of Prob. 3-1 if γ = 17.7 kN/m3 for the first 2 m of depth above the GWT?

A) 177 kPa, 177 kPa
B) 148.4 kPa, 177 kPa
C) 165 kPa, 177 kPa
D) 177 kPa, 148.4 kPa