The maximum water content at which re- duction in the water content will NOT cause a decrease in the volume of soil mass is known as ___________of soil sample

Correct option is C

It is minimum water content at which soil is completely saturated or the maximum water content at which further reduction in water content does not cause any decreases in the volume of soil sample

At shrinkage limit, (a) S = 1, (b) there are two phases (soil & water), (c) no volume change.