Historical Load- Bearing Masonry Structures Were Designed with the Assumption

Historical load- bearing masonry structures were designed with the assumption that

A) all wind loads on the building were resisted by exterior walls only, and in doing so, they interacted with each other structurally.
B) interior and exterior walls and floor and roof diaphragms resisted wind loads collectively.
C) all wind loads on the building were resisted by exterior walls only, with no structural interaction between them.
D) both interior and exterior walls resisted wind loads.
E) none of the above.