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 |
| --- | --- | --- | --- | --- | --- |
| WVTW | 88.5 | Charlottesville, Virginia | 1,000 | B1 | FCC |
| WFFC | 89.9 | Ferrum, Virginia | 1,100 | A | FCC |
| WQIQ | 88.3 | Spotsylvania, Virginia | 3,500 | A | FCC |
| WRIQ | 88.7 | Lexington, Virginia | 3,900 | A | FCC |
| WWVT | 1260.0 | Christiansburg, Virginia | 5,000 day 25 night | D | FCC |
Question:
Which class City of license of ferrum, virginia?
Answer:
A