Under 46 CFR §58.30-20, hose assemblies installed in a fluid power system must NOT be subjected to which condition under any circumstances?

Why B is correct

46 CFR §58.30-20(c) states that hose assemblies must not be subjected to torsional deflection (twisting) under any conditions of operation. Installation between points of relative motion is explicitly permitted. Excessive length is discouraged but not absolutely prohibited where operationally required. Gradual bends are acceptable; only sharp bends are to be avoided per §58.30-20(d).