Khurram as per me B is correct.
Argument says Increase in wages will drive inflation up. But Inflation will go up only if a large number of people actually get an increase in wage..
counter argument says : A large number of people are NOT going to get an increase as majority are workers are getting wages above minimum wages so an increase is not going to increase their wages.
But what weaken this is , if still there are a large number of workers who are getting lower wages, they will start getting higher wages and drive inflartion up....
Hence B is right answer.
C classifies workers into trainees and trainers....and it implies trainees are at minimum wages but trainers are way above minimum wages as they get rwards and hence trainees who form a small part are not influential enuf to increase inflation ......