OA is E.
Source: GMAT Prep EP
C is wrong cause it strongly says no commentaries were written at all. However, we are taking about only the extant manuscripts. It is possible that the commentaries were written, but somehow the manuscripts are lost or not found.
Source: GMAT Prep EP
C is wrong cause it strongly says no commentaries were written at all. However, we are taking about only the extant manuscripts. It is possible that the commentaries were written, but somehow the manuscripts are lost or not found.






