In a Twin- Span Mullion System for a Glass Curtain

In a twin- span mullion system for a glass curtain wall,

A) only one dead- load anchor is provided for the entire height of the wall.
B) one dead- load anchor is provided at every floor level.
C) one dead- load anchor is provided at every alternate floor level.
D) two dead- load anchors are provided at every alternate floor level.
E) two dead- load anchors are provided at every floor level.