Answer:
B) is narrow and outdated.
Explanation:
The article's name is "Rethinking the 4 P’s" and it summarizes a 5 year study that involved more than 500 top level managers across the world. That study doesn't say that the 4 Ps are useless, it states that they are outdated. The study focused on the B2B market and it argues that the 4 Ps must be restated: