Economies of Scope Exist Between Book Publishing and Magazine Publishing

Multiple Choice

Economies of scope exist between book publishing and magazine publishing if

A) the cost of publishing a magazine is lower for book publishers than for other firms.
B) the cost of publishing a magazine is lower for firms that publish many magazines than for firms that publish only one magazine.
C) the cost of publishing a book falls over time as the publisher acquires more experience.
D) the cost of a publishing a book is not subject to diminishing marginal returns.