Which of the Following Sentences Demonstrates Parallel Structure

Multiple Choice

Which of the following sentences demonstrates parallel structure?

A) Marian will interview all candidates, Dale will train new employees, and annual reviews will be conducted by Paul.
B) The proposal affected all students, educators, and administrators.
C) The committee plans to review all proposals, interview contractors, and then it must select a certified vendor.
D) Successful job candidates must demonstrate leadership, teamwork, and they must possess strong communication skills.