Why E cannot be the right answer?

@Rodrigocym this is a Cannot Be True question, which means that the four incorrect answer choices are possible whereas the correct answer choice is not possible. Since we were able to show that (A)-(D) are possible, we arrive at (E) by process of elimination. If Jill stocks aisle 3, you cannot have Olga stock aisle 6. You will not be able to come up with a valid hypothetical that has J in 3 and O in 6. Hope that helps! Please let us know if you have any other questions.

@lsatmax @rodrigocym So when you put __J__O___, you do not have room for MKM placement before the O.