Question

a structure is made up of ______, which spread out the weight of the forces acting on it. a pylons b materials c walls d members

Explanation:

In structural engineering, a structure is composed of members that distribute the weight and forces acting on it. Pylons are specific types of structures, materials are what members are made of, and walls are a type of member but not the most general term. Members are the building - blocks that spread out the weight.

Answer:

D. members