Integrated air cargo airlines have their major hubs located in the Ohio Valley region of the U.S. for which of the following reasons? Group of answer choices (A) The airlines want to be near each other for competitive reasons (B) Much of their cargo that can be trucked to major east coast population centers (C) Aircraft serving the west coast can fly there and be back in time to make the nightly connections at the hub (D) Real estate (land for their operations) is cheap (E) Answers B and C (F) Answers A, B, C, and D