Related Clues:

• Project that must be defended
• Test dentists (and their clients) must pass?
• Article is about singular line of argument
• Article poses timeless item for debate
• Student's Ph.D. paper
• Unproved statement put forward as an argument
• Article is defending singular argument
• Grad student's major project
• Ph.D. requirement
• Challenge for a doctoral student
• Common degree requirement
• Core argument