sources.list 's security line

[riveravaldez <riveravaldezmail@gmail.com>]

Hi,

after reading the various sources of documentation (handbook,
wiki, FAQs, Release Notes, etc.) I think I'm finding myself with
kinda four options for the security line in /etc/apt/sources.list
Those being:

deb http://security.debian.org/debian-security bullseye-security main

deb http://security.debian.org bullseye-security main

deb https://deb.debian.org/debian-security bullseye-security main

deb http://security.debian.org testing/updates main

Which would be the right one(s)?

Thanks a lot!