In two months, the legal minimum wage in the country of Kirlandia will increase

from five Kirlandic dollars(KD5.00) Per hour to KD5.50 per hour. Opponents of

this increase have argued that the resulting rise in wages will drive the inflation

rate up. In fact its impact on wages will probably be negligible, since only a

very small proportion of all Kirfandic workers are currently receiving less than

KD5.50 per hour.

Which of the following, if true, most seriously weakens the argument?

A. Most people in kirlandia who are currently earning the minimum wage have

  been employed at their current jobs for less than a year.

B. Some firms in Kirlandia have paid workers considerably less than KD5.00

  per hour, in violation of kirlandic employment regulations.

C. Many businesses hire trainees at or near the minimum wage but must

  reward trained workers by keeping their paylevels above the pay level

  of trainees.

D. The greatest growth in Kirlandia’s economy in recent years has been in

   those sectors where workers earn wages that tend to be much higher

   than the minimum wage.

E The current minimum wage is insufficient for a worker holding only one job 

to earn enough to support a family ,even when working full time at that job.

答案是C

请问为什么选C，我觉得好像是B对。因为很多人的工资低于最低工资水平，所以最低工资水平增加，工人的收入增加，就会导致inflaction，所以weaken the argument。