Editorial: Painting involves a sequential application of layers, each of ... ...

Editorial: Painting involves a sequential application of layers, each of which adheres satisfactorily only if the underlying layer has been properly applied. Education is, in this respect, like the craft of painting. Since the most important steps in painting are preparation of the surface to be painted and application of the primer coat, it makes sense to suppose that _______. Which one of the following most logically completes the editorial’s argument?
(A) in the educator’s initial contact with a student, the educator should be as undemanding as possible
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Dec 2012 LSAT (PT68): Logical Reasoning B