Q$4.$ Given the following data for a circular curve on a set of highway plans, knowing that you need the stationing of the PC before you can calculate the station of the P$.$T$.,$ what is the stationing of the PC$?$

$\frac{?}{PI}=1377+46\mathrm{.}0$

$R=5729\mathrm{.}59$

$=16{45}^{\text{'}}LT$

$T=843\mathrm{.}5$

$D=1{00}^{\text{'}}$

$L=1675\mathrm{.}0$

a$)1385+77\mathrm{.}5$

b$)1369+02\mathrm{.}5$

c$)1385+83\mathrm{.}5$

d$)1385+89\mathrm{.}5$