Steering Dynamics Question
From a naïve geometry point all three options are equivalent.
For real systems material properties and 3d geometry become relevant. For instance, your model (A) could not be made with a single piece bar. The double 90 degree bends needlessly increase stress.
On the level of one dimensional line figures there's no reasonable answer possible. To answer this question you need the actual dimensions and materials in a CAD model and then run an finite element analysis (FEA).