I think a, or d, but I can't say for certain. I am sorry.
Surface culture is a tangible norm that is used to define the culture for example food, clothing, art.
Deep culture is ones thoughts, feelings, or personal opinion on that culture.
You could probably use the public education system for both of those definitions. Hope this helps!
Because they’re the ones who let any other account. Send them an transaction so it’s their responsibility whether they should’ve accepted it or not