Which of the Following Examples Shows the Use of a Power-Oriented

Which of the following examples shows the use of a power-oriented linguistic style?

A) Karen writes most of her business memos and letters using the passive voice.
B) Janet speaks in a loud and clear voice during team meetings so that everyone can hear her.
C) Abraham often delivers lengthy speeches with no concrete conclusions when addressing his subordinates.
D) Milton uses a substantive amount of business jargon in his emails pertaining to new projects.