Length of soil sample for constant head permeability test is 30 cm, Area of specimen is 177cm², constant head difference is 50 cm, total volume of water collected in 5 min is 350cm³. Calculate the hydraulic conductivity of the soil. A) 2.85×103cm/sec D) 1.09×10 cm/sec B) 1.09×10 cm/sec c) 3.95×10³ cm/sec