The correct option is C None of these
As per the question given, a-b-c means a<b<c i.e. c is the greatest.
Option A means a<b>c i.e. b is the greatest.
Option B means b>a<c
Option C means c<b>a i.e. b is the greatest.
Option D means b>a>c i.e. b is the greatest.
There is no option that implies c is the greatest.