Which term refers to a Dan holder who has not yet achieved senior status?

• A. Ko Dan Ja
• B. Yu Dan Ja
• C. Yu Gup Ja
• D. Cho Bo Ja

Answer: (B)

In this ranking system, Dan holders are labeled to show whether they are at a junior or senior level. Yu Dan Ja specifically means a Dan holder who has not yet reached senior status — a junior black belt. The prefix Yu indicates younger or junior, and Dan Ja means the holder of a Dan rank. So this term directly identifies someone who has earned black belt status but isn’t considered a senior Dan yet.

The other terms refer to different statuses: Ko Dan Ja would indicate a senior Dan holder, Yu Gup Ja denotes a student with a Gup (color) belt rather than a Dan, and Cho Bo Ja covers a different rank/title not about being a junior Dan.