A level backsights a benchmark of elevation ${104\mathrm{.}52}^{\text{'}}$ with a rod reading of ${6\mathrm{.}90}^{\text{'}}.$ The level observes

intermediate foresights of a$){5\mathrm{.}26}^{\text{'}},$ b$){8\mathrm{.}24}^{\text{'}}$ c$){4\mathrm{.}25}^{\text{'}}$ d$)-{8\mathrm{.}25}^{\text{'}}$ e$){4\mathrm{.}25}^{\text{'}}.$ What is the elevation of the intermediate

foresights?

a$)$

b$)$

c$)$

d$)$

e$)$