Which one of the following pairs of titles would be most appropriate for ... ...

Which one of the following pairs of titles would be most appropriate for passage A and passage B, respectively?


(A)  “The Economic Theories of Edward Castronova” “Intellectual Property Rights in Virtual Worlds” 

(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in PT71 (Dec 2013): Reading Comprehension