Which of the Following Sentences Demonstrates Parallelism

Multiple Choice

Which of the following sentences demonstrates parallelism?

A) In my current position,I interact with customers,input orders,and am responsible for updating the company's Facebook page.
B) Our new CEO's objectives are to improve employee morale,to boost revenues,and to enhance community relations.
C) Collecting,organizing,and documentation -- these are important steps in researching a problem.
D) The person we hire for this position should be flexible,reliable,and have good organizational skills.