Two sentences are given in italics on both sides of C. Which of the following statements can come in between the two sentences in place of C so as to maintain the continuity of the paragraph?

• A. this means that our leaders must owe supreme loyalty to nothing
• B. understand the purpose of the job, can speak their mind, and are able, without fear
• C. such persons can be identified only by one who possesses these qualities
• D. Its deficiencies begin to show up only when put into practice.
• E. None of the above