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:
| Call sign | Frequency MHz | City of license | ERP W | Class | FCC info |
| --- | --- | --- | --- | --- | --- |
| W228BY | 93.5 | Allapattah, Florida | 120.0 | D | FCC |
| W298AK | 107.5 | Fort Pierce, Florida | 27.0 | D | FCC |
| W280DU | 103.9 | Greenacres, Florida | 10.0 | D | FCC |
| W263BB | 100.5 | Okeechobee, Florida | 50.0 | D | FCC |
| W294AM | 106.7 | Tradition, Florida | 170.0 | D | FCC |
| W227BT | 93.3 | Port St. Lucie, Florida | 13.0 | D | FCC |
| W244BD | 96.7 | Stuart, Florida | 800.0 | D | FCC |
Question:
What class does the w298ak sign belong to?
Answer:
D