OA is E. Answer choice E can be easily, directly, and correctly inferred from the statement that the dogs bark and howl every time their owner lets them outside. The rest of this passage is "decoy" material, as discussed in the preparation techniques and tips webpage. You may have noticed 2 other techniques employed by the GMAT writers in this question. The first trick is to have an unqualified authority comment on a controversy. In this case, we have no reason to believe a CPA would be an expert on canine behavior. The second trick is to present extreme or emotionally loaded statements. Answer choice A is too extreme to be a correct answer choice on the GMAT.
@U2 lover: nope, just acquiring info from various sources