a$)$ Classify the soils by the Unified Soil Classification System and by their estimated constituent fraction using the grainsize distribution Graphs in Figure $2$ above $[4]$ b$)$ Based on the figure and classifications, Compare $($with explanation$)$ in ascending order the following engineering properties between the soils: Bearing Capacity Permeability Compressibility Swell$/$shrinkage $[8]$ c$)$ Which soil is best used for the construction of an embankment with steep side slopes and why $[2]$