Identify a segment skew to gh. what is the answer to it? bc, ad, ef, or be.

A figure is not given so I cannot really give a definite answer to your question. Instead, I would discuss what are skew lines. Skew lines exist in a three-dimensional geometry. These are lines that are not parallel with each other but do not intersect. They are lines that do not lie on the same plane or non-coplanar.