Many answers incorrect and most do not have explanations

[magenta_bandit]

I'm having a real problem with the drag and drop section. I really cannot trust your answers here and have to validate almost every question. AND91 for example,

https://www.setra.com/blog/ipv6-multicas...%20address.

"Since multicast addresses can’t ever be a source address"

Your answer says the exact opposite. I genuinely don't know if I can use this section to study since so many answers are incorrect. It's much worse than the previous sections.