Mobile Apps » GRE (IOS)

Please check this too .
Not sure if these questions where these questions are picked from .
As far as I know mobile app questions are in question bank beta so when we search with tags QB and safe for ios we get those questions .
This is the second issue in one week in mobile app.
The question on Mobile app :
gluid :15542
The original question and answer choices :
http://entrayn.com/node/1342/questionbank-beta#15542
and even the explanation seems to be wrong in the mobile app different from one what we have on Qbeta .
please see the attached images .