Root DNS serverIn the following figure, suppose that I am visiting the web site $($gaia$.$cs$.$umass.edu$)$ for the first time, and my colleague used the same running computer and visited the same site few hours later. which steps from the shown figure that he needs to execute.

So it is :

a$\mathrm{.}1,8$

b$\mathrm{.}1,8|6,7$

c$\mathrm{.}1,8+2,3+4,5+6,7$

d$.$None of the given options

e$\mathrm{.}1,8|4,5|6,7$