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 | Pick | Player | Nationality | School |
| --- | --- | --- | --- | --- |
| 1 | 16 (for Frank Catalanotto ) | Kevin Ahrens (SS) | United States | Memorial High School |
| 1 | 21 | Jonathan Arencibia (C) | United States | Tennessee |
| C-A | 38 (for Justin Speier ) | Brett Cecil (LHP) | United States | Maryland-College Park |
| C-A | 45 (for Frank Catalanotto ) | Justin Jackson (SS) | United States | T.C. Roberson High School |
| C-A | 56 (for Ted Lilly ) | Trystan Magnuson (RHP) | Canada | Louisville |
| 2 | 85 | John Tolisano (2B) | United States | Estero High School |
| 2 | 88 (for Justin Speier ) | Eric Eiland (CF) | United States | Lamar High School |
| 3 | 115 | Alan Farina (RHP) | United States | Clemson |
| 4 | 145 | Brad Mills (LHP) | United States | Arizona |
| 5 | 175 | Marc Rzepczynski (LHP) | United States | UC-Riverside |
| 6 | 205 | Michael McDade (1B) | United States | Silverado High School |
| 7 | 235 | Randy Boone (RHP) | United States | Texas |
| 8 | 265 | Robbert Leffler (RHP) | United States | U of Tampa |
| 9 | 295 | Marcus Walden (RHP) | United States | Fresno CC |
| 10 | 325 | Joel Collins (C) | Canada | South Alabama |
| 11 | 355 | Brad Emaus (2B) | United States | Tulane |
| 12 | 385 | Steven Condotta (SS) | Canada | Florida Tech |
| 13 | 415 | Jonathan Talley (C) | United States | Carlsbad High School |
| 14 | 445 | Cody Crowell (LHP) | United States | Vanderbilt |
| 15 | 475 | Nathan Jennings (RHP) | United States | Tyler |
| 16 | 505 | Darin Mastroianni (2B) | United States | USI |
| 17 | 535 | Adalberto Santos (2B) | United States | New Mexico JC |
| 18 | 565 | Christopher Corrigan (RHP) | United States | San Jacinto College |
| 19 | 595 | Brian Letko (LHP) | United States | Embry-Riddle |
| 20 | 625 | Willie Hale (RHP) | United States | tOSU |
| 21 | 655 | Cody Dunbar (RHP) | United States | TCU |
| 22 | 685 | Matthew Thomson (RHP) | United States | Santa Rose College |
| 23 | 715 | Frank Gailey (LHP) | United States | West Chester |
| 24 | 745 | James Dougher (RHP) | United States | SUNY-Cortland |
| 25 | 775 | Jason Monti (RHP) | United States | Sacred Heart |
| 26 | 805 | Ross Buckwalter (RHP) | United States | Shippensburg |
| 27 | 835 | Kyle Gilligan (SS) | Canada | Connors State |
| 28 | 865 | Xorge Carrillo (C) | United States | McClintock High School |
| 29 | 895 | Jonathan Runnels (LHP) | United States | Rice |
| 30 | 925 | David Kaye (RHP) | United States | Riverview High School |
Question:
Which school's nationality was United States when its pick was 595?
Answer:
Embry-Riddle