Which term is the Senior Dan holder?

• A. Ho Sin Sul
• B. Yu Dan Ja
• C. Ko Dan Ja
• D. Yu Gup Ja

Answer: (C)

In Tang Soo Do terminology, a practitioner who has earned a black belt is called a Dan Ja, with the specific title rising as the rank increases. A Senior Dan holder is indicated by adding Ko in front of Dan Ja, signaling a higher, more senior black belt. So Ko Dan Ja is the term used to designate someone who has progressed to a senior Dan rank. The other terms relate to different ideas: Ho Sin Sul is about self-defense techniques, not rank; Yu Dan Ja isn’t the standard title for senior Dan status; and Yu Gup Ja refers to colored-belt (Gup) ranks, not Dan ranks.