Study the following graph to answer these questions.
The following bar graph shows the revenue generated by three realty firms A, B and C during 2012 to 2016. Each of these firms builds Low Income Group (LIG) apartments, Middle Income Group (MIG) apartments and High Income Group (HIG) apartments.
The firms A, B and C saw tise of 15%, orpand 9% respectively in 2012 from 2011. Whose revenue was least in 2011?