How Should Passive Skills Work?

Hey everyone!
I'm currently thinking about how passive skills should work in Bred for War, and I'd like to hear your opinions before I settle on the final design.
One thing I've already decided is that characters will gain a new passive skill every 5 levels. Companions will have their passive skills predetermined, but for the main character, I'd like to give players more control over how they develop their build.
I'm considering two possible systems:
Option 1: Random Selection
Whenever you earn a passive skill, you'll be presented with 4 randomly selected skills and can choose one of them.
The available skills will depend on your character's current class, so you'll get options that fit your chosen playstyle. There would be also some skills out of your class.
This system would encourage players to adapt to the options they're given and make each playthrough a little different.
Option 2: Passive Skill Tree
Instead of random selections, passive skills would be organized into a skill tree. Some skills could only be unlocked after learning specific skills earlier in the same branch.
This would give you more control over your character's long-term development and allow you to plan your build in advance.
It would also offer more freedom to experiment with unusual builds. For example, a tank could invest in magic-oriented passives or offensive skills and gradually develop a playstyle that resembles a mage or a damage dealer.
Which system would you prefer?
I'd appreciate your feedback! I'm particularly interested in whether you prefer the variety of random choices or the freedom to plan your build around a skill tree.
Thanks for helping me shape the future of Bred for War!