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:
| School | Location | Mascot | Enrollment | IHSAA Class | County |
| --- | --- | --- | --- | --- | --- |
| Attica | Attica | Red Ramblers | 283.0 | A | 23 Fountain |
| Covington | Covington | Trojans | 292.0 | A | 23 Fountain |
| Fountain Central | Veedersburg | Mustangs | 435.0 | AA | 23 Fountain |
| North Vermillion | Cayuga | Falcons | 238.0 | A | 83 Vermillion |
| Riverton Parke | Montezuma | Panthers | 316.0 | A | 61 Parke |
| Rockville | Rockville | Rox | 248.0 | A | 61 Parke |
| Seeger | West Lebanon | Patriots | 427.0 | AA | 86 Warren |
| Turkey Run | Marshall | Warriors | 174.0 | A | 61 Parke |
Question:
What is the IHSAA class when the county was 83 vermillion?
Answer:
A