Why Are Farm Publications Not Classified with Business Publications

Why are farm publications not classified with business publications?

A) Because historically farms were not perceived as businesses.
B) Because adding up farm magazines with business magazines would make the category too large.
C) Because farm magazines are a hybrid of consumer and business magazines.
D) Because the service that did the initial classification of magazines was owned by a farm publication.
E) Because federal laws require the breakout of farm magazines because subscriptions to these magazines help to determine farm allowances.