Which of the following problems weakens the frame of a trailer constructed in the monocoque style?

A) floor rotted out
B) damaged door post
C) sagging roof
D) all of the above

Monocoque Style

A structural design approach where the outer skin supports most of the load, common in aircraft and vehicle construction.

Frame Weakens

A condition where the structural integrity of a framework, such as that of a vehicle, is compromised due to stress, corrosion, or damage.