Really good question! Thanks for bringing this one to the forum.
So you're reading answer choice (E) as saying that "hey, the stationary supplier is way off track, and ignores the real issue." Right? That makes sense, but we need to look very carefully at the langue cues. What does it mean to ignore something? It means to not address it. Does the stationary supplier fail to address the quality of recycled paper? No. The stationary supplier says specifically, that recycled paper is not necessarily inferior.
Because the stationary supplier addresses quality, answer choice (E) cannot be said to represent something the stationary supplier did.
Answer choice (B) though makes exactly your point:
YLAGUNAS Wrote:My reasoning for this was that the Supplier's response was not addressing the quality of the paper and was instead focusing on how the paper was made
Let's look at the incorrect answers on this one:
(A) is strange. Why should the stationary supplier recognize ignorance in the manager's prejudice against recycled paper?
(C) is out of scope. The issue of environmental concern is not addressed.
(D) is unsupported. The office manager need not understand the basic technology for making paper.
(E) is not true. The stationary supplier does address the issue of quality, but offers irrelevant information to support the claim about quality.
Hope that helps!