Which one of the following best illustrates the concept of increasing returns ... ...

Which one of the following best illustrates the concept of increasing returns to scale described in the second paragraph of the passage?
(A) A publishing house is able to greatly improve the productivity of its editors by relaxing the standards to which those editors must adhere. This allows the publishing house to employ many fewer editors.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Dec 2012 LSAT (PT 68): Reading Comprehension