Question:

In the context of structural engineering, when determining the load distribution on a bridge, what relationship holds true for the positions of the center of gravity of the load system, the center of span, and the wheel load under consideration?

A. The center of gravity of the load system is midway between the center of span and the wheel load under consideration.

B. The center of span is midway between the center of gravity of the load system and the wheel load under consideration.

C. The wheel load under consideration is midway between the center of span and the center of gravity of the load system.

D. None of the above.