Which among the following sentence is best to choose considering it is asked in a MCQ pattern based exam ?
Your complaint must be made through the proper channels
A) through proper channel
B) through proper channels
C) with proper channels
D) no improvement
Given options should replace just the bold part of the sentence.
C is grammatically wrong. A is also wrong as it changes meaning here. (Changes channels to channel). I am confused between option B and D. Do we need use here the article the or not ?