(A) With the new postage rates, a typical issue under the proposed plan would cost about one-third more to mail than a typical current issue would.-> irrelevant, eliminate it
(B) The majority of the magazine’s subscribers are less concerned about a possible reduction in the quantity of the magazine’s articles than about a possible loss of the current high quality of its articles.-> quality of articles would remain same so this is not an issue,eliminate it

(C) Many of the magazine’s long-time subscribers would continue their subscriptions even if the subscription price were increased.-> this would actually increase the profits, however increase of price is not the questions, thus irrelevant, eliminate it

(D) Most of the advertisers that purchase advertising space in the magazine will continue to spend the same amount on advertising per issue as they have in the past.->Thus if the company reduces the # of magazines per year to 1/2 then the company clearly loosed 1/2 of the revenue generated on the advertising,

(E) Production costs for the magazine are expected to remain stable.-> irrelevant, eliminate it