In Part $1\mathrm{.}2,$ Step $3,$ you took a screenshot image after selecting IP address $192\mathrm{.}168\mathrm{.}1\mathrm{.}6.$ This part of the image showed one port that was closed. What was that port?

Question $6$ options:

a$)$

$9876$

b$)$

$21$

c$)$

$22$

d$)$

$80$