Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Tournament | Conference | Championship Game Opponent | Score | Location | Head Coach |
| --- | --- | --- | --- | --- | --- |
| 1994.0 | CCHA | Lake Superior State | 3-0 | Joe Louis Arena Detroit, MI | Red Berenson |
| 1996.0 | CCHA | Lake Superior State | 4-3 | Joe Louis Arena Detroit, MI | Red Berenson |
| 1997.0 | CCHA | Michigan State | 3-1 | Joe Louis Arena Detroit, MI | Red Berenson |
| 1999.0 | CCHA | Northern Michigan | 5-1 | Joe Louis Arena Detroit, MI | Red Berenson |
| 2002.0 | CCHA | Michigan State | 3-2 | Joe Louis Arena Detroit, MI | Red Berenson |
| 2003.0 | CCHA | Ferris State | 5-3 | Joe Louis Arena Detroit, MI | Red Berenson |
| 2005.0 | CCHA | Ohio State | 4-2 | Joe Louis Arena Detroit, MI | Red Berenson |
| 2008.0 | CCHA | Miami University | 2-1 | Joe Louis Arena Detroit, MI | Red Berenson |
Question:
What is the conference when Ferris State is the championship game opponent?
Answer:
CCHA