Skeptics of Online Learning Claim All of the Following EXCEPT

Skeptics of online learning claim all of the following EXCEPT:

A) Virtual courses do not provide the kind of intellectual exchanges that are possible in classroom settings.
B) Students who are not self-disciplined may not be able to work independently to motivate themselves to do well online.
C) Online courses lack sufficient oversight compared to in-class instruction.
D) Because of the technology involved, online schools are more costly to taxpayers than traditional schools.