Lateral torsional buckling is not possible to occur if
(a) moment of inertia about bending axis is twice than moment of inertia out of plane
(b) moment of inertia about bending axis is greater than moment of inertia out of plane
(c) moment of inertia about bending axis is equal to or less than moment of inertia out of plane
(d) moment of inertia about bending axis is equal to or greater than moment of inertia out of plane
I have been asked this question in an international level competition.
The question is from Lateral Torsional Buckling topic in chapter Design of Beams of Design of Steel Structures