Which one of the following, if substituted for the condition that Gladstone ... ...

Which one of the following, if substituted for the condition that Gladstone cannot be the fourth school to which juices are delivered, would have the same effect in determining the delivery schedule?
(A) Ferndale must be either the second school or the fourth school to which juices are delivered.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in June 2013 LSAT (PT69): Analytical Reasoning