Extracted text: It is decided to construct an artificial lake in the Bahr Al Najaf, for touristic and storage purposes of 5000 m³. The soil is generally sand with a specific gravity of 2.65, water table at about 2 meters below N.G.L and the soil is saturated up to surface level, with medium density with the degree of compaction of 60%. The maximum laboratory dry density is 19 kN/m³. Answer the following questions: 2. We can increase the field density by: a. increasing the water content b. decreasing the layer thickness and No. of roller passes O c. increasing the weight of soil mould С. d. increasing the gradation of the soil е. none of these