Based on passage B, which one of the following is a characteristic of some ... ...

Based on passage B, which one of the following is a characteristic of some “games that are intentionally commodified” (line 54)?
(A) The game allows selling real items for virtual currency.
(B) ...
(C) ...
(D) ...
(E) ...

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