Which of the following diagrams indicates the best relation between Professors, Doctors and Men ?

• A. <img src="/_files/images/verbal-reasoning/venn-diagram/4-19-1-c6.png">
• B. <img src="/_files/images/verbal-reasoning/venn-diagram/4-19-1-c4.png">
• C. <img src="/_files/images/verbal-reasoning/venn-diagram/4-19-1-c5.png">
• D. <img src="/_files/images/verbal-reasoning/venn-diagram/4-19-1-c7.png">