Which of these choices displays both proper parallel structure and correct use of commas? A) The editor told his writers to make sure they punctuate properly, to make sure they place quote marks around direct quotations, and to check the quality of their work. B) The editor, told his writers to make sure they punctuate properly, to make sure they place quote marks around direct quotations, and to check the quality of their work. C) The editor told his writers to make sure they punctuate properly, to make sure they place quote marks around direct quotations, and checking the quality of their work. Eliminate D) The editor told his writers to make sure they punctuate properly, the importance of placing quote marks around direct quotations, and to check the quality of their work.

A). The editor told his writers to make sure they punctuate properly, to make sure they place quote marks around direct quotations, and to check the quality of their work.

Explanation:

Parallelism is demonstrated as the fundamental grammatical rule that involves the employment of a similar form or structure for the phrases or clauses of equal significance. It enhances the readability and efficacy of the statement. While punctuation serves to describe the construction of the sentence and clarifies the meaning.

As per the question, option A reflects the proper parallel structure as displayed by the use of similar verb form 'punctuate, place' and correct use of commas after each clause as it separates the three clauses quite effectively and offers a clear and coherent meaning to the statement. Thus, option A is the correct answer.