Standard Proctor compaction test results on a soil sample are shown below:

$\backslash$table$[[$Water Content $($w$,\%),14\mathrm{.}2,15\mathrm{.}1,17\mathrm{.}2,19\mathrm{.}2,22],[$Dry Unit Weight $(y_d,kN{m}^{-3}),14\mathrm{.}4,15\mathrm{.}6,17\mathrm{.}1,17,15\mathrm{.}6]]$

The sample is from soil taken from a borrow pit called Mona Borrow Pit A$.$

The in$-$situ soil has a porosity of $35\%$ and a water content of $15\%.$ The swell factor is $1\mathrm{.}35.$

If the soil was found to have a LL and a PI of $65\%$ and $45\%$ respectively, which of the following is the best instruction to the contractor:

$$ a$.$ Compact Dry of Optimum in lifts less than $300mm$

b$.$ Compact Dry of Optimum in lifts less than $150mm$

c$.$ Compact Wet of Optimum in lifts less than $150mm$

d$.$ Compact Wet of Optimum in lifts less than $300mm$