Well from research and me living in Norte Dame we all call it the <span>archivolts from all the pictures and the meanings of them</span>
The first answer is Figured Bass and I don't know the rest
A or d. I feel like it leans more toward d, since it's about the architecture of the building.
It is mosque. I know, because I'm muslim. :)
This is one of the tips you may want to try (I hope this helps)