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:
| Pick | Round | Player | Position | School |
| --- | --- | --- | --- | --- |
| 1.0 | 1 | Bo Jackson | Running Back | Auburn |
| 25.0 | 1 (from Miami) | Roderick Jones | Defensive Back | Southern Methodist |
| 28.0 | 2 | Jackie Walker | Linebacker | Jackson State |
| 40.0 | 2 (from Miami) | Kevin Murphy | Linebacker | Oklahoma |
| 83.0 | 4 | Craig Swoope | Defensive Back | Illinois |
| 112.0 | 5 | J.D. Maarleveld | Tackle | Maryland |
| 165.0 | 6 (from New England) | Kevin Walker | Defensive Back | East Carolina |
| 223.0 | 9 | Tommy Barnhardt | Punter | North Carolina |
| 250.0 | 10 | Benton Reid | Defensive End | Mississippi |
| 279.0 | 11 | Mark Drenth | Tackle | Purdue |
| 306.0 | 12 (from San Francisco) | Clay Miller | Guard | Michigan |
Question:
What was the highest guard picked?
Answer:
306.0