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:
| Round | Selection | Player | Position | College |
| --- | --- | --- | --- | --- |
| 1 | 22 | Desmond Trufant | CB | Washington |
| 2 | 60 | Robert Alford | CB | Southeastern Louisiana |
| 4 | 127 | Malliciah Goodman | DE | Clemson |
| 4 | 133 | Levine Toilolo | TE | Stanford |
| 5 | 153 | Stansly Maponga | DE | TCU |
| 7 | 243 | Kemal Ishmael | S | Central Florida |
| 7 | 244 | Zeke Motta | S | Notre Dame |
| 7 | 249 | Sean Renfree | QB | Duke |
Question:
how many cbs were drafted in 2013?
Answer:
2