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:
| Episode # | Title | Directed by | Written by | Original airdate |
| --- | --- | --- | --- | --- |
| 89 (1) | "Déjà Vu All Over Again" | Jon Cassar | Robert Cochran | January 7, 2001 |
| 90 (2) | "A Girl Who Wasn't There" | Terry Ingram | Lawrence Hertzog | January 14, 2001 |
| 91 (3) | "In Through the Out Door" | René Bonnière | David Wolkove | January 21, 2001 |
| 92 (4) | "All the World's A Stage" | Joel Surnow | David Wolkove | February 4, 2001 |
| 93 (5) | "The Man Behind the Curtain" | René Bonnière | Lawrence Hertzog | February 11, 2001 |
| 94 (6) | "The Evil That Men Do" | Roy Dupuis | Andy Horne & Katherine Tomlinson | February 18, 2001 |
| 95 (7) | "Let No Man Put Asunder" | René Bonnière | Lawrence Hertzog | February 25, 2001 |
| 96 (8) | "A Time For Every Purpose" | Brad Turner | Michael Loceff | March 4, 2001 |
Question:
What is the episode # of the episode that originally aired on January 21, 2001?
Answer:
91 (3)