It was to protect each other, and people formed aliances which created the guild
Explanation:
They made these guilds to protect there products and that way everyone gained protection, not being in the guild back then meant you would be robbed and killed, so many joined the guild if a merchant.
Also if this is about videogames its kind of a clan
I think the answer is B. I haven’t taken the test, so please let me know if it’s correct or not. But based on reading the question and using what knowledge I have, I think it’s B.