Help needed with webbrwoser control and vb.net 2017

[cobusduvengmail.com]

I try to log in to series of we pages. Currently I can move from the login page to the 3rd page which contains a main category and sub category drop down menu. I would like to select the categories
Attach you will find the page source code and is high lighted in green and red
I have tried a lot of Internet examples but can not find a way.

https://files.engineering.com/getfi...d_to_fill_in_the_options_in_red_and_green.pdf