Respuesta :
In a situation in which the smarter armiture is rubbing on the field the most commin reason are defective bushings. So, the ststement the techician A ssys that the brushings shojld be replaced is correct. Techinican A is right.
Answer : Option A) the bushings need to be replaced.
Explanation : When a technician notices that the starter armature is getting rubbed on the field coils, his advise for changing the bushings seems to be correct in this case. This problem usually arises because of the malfunctioning of the bushings placed in the armature. So, it will be better to replace it with the new ones.