Direction: In the following diagram, there are 3 intersecting Circles showing 3 different classes, one showing those candidates who are educated in computers, second showing those who know rules and regulations of office and third showing graduates. Each part of the diagram is represented by an alphabet.Which alphabet represents those candidates who are educated in computers, know rules and regulations of office but are not graduates?

• A. b
• B. c
• C. d
• D. f