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:
| Poll source | Dates administered | Jim DeMint (R) | Alvin Greene (D) | Tom Clements (G) | Other | Undecided |
| --- | --- | --- | --- | --- | --- | --- |
| Rasmussen Reports | October 19, 2010 | 58% | 21% | –– | 15% | 6% |
| Winthrop University | October 5–10, 2010 | 58% | 11% | 12% | 3% | 14% |
| Crantford & Associates | October 2, 2010 | 58% | 21% | –– | 10% | 5% |
| Rasmussen Reports | September 22, 2010 | 64% | 21% | –– | 10% | 5% |
| Rasmussen Reports | August 25, 2010 | 63% | 19% | –– | 8% | 10% |
| Rasmussen Reports | August 3, 2010 | 62% | 20% | –– | 7% | 10% |
| Rasmussen Reports | June 10, 2010 | 58% | 21% | –– | 9% | 13% |
Question:
Which poll source determined undecided of 5% and Jim DeMint (R) of 58%?
Answer:
Crantford & Associates