Directions: In the following question, a sentence is divided into four parts (A), (B), (C), and (D). The error, if any, will only be in one part of the sentence. Choose the option with the part containing the error and mark it, if the sentence is free from errors, mark 'No error' as your answer.

Moreover, a educated workforce (A)/ is argued to be (B)/ one of the important prerequisites (C)/ for economic expansion and advancement (D)/.