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:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | U.S. viewers (in millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 19.0 | 1.0 | " Summer, Kind of Wonderful " | J. Miller Tobin | Joshua Safran | September1,2008 | 3.43 |
| 20.0 | 2.0 | " Never Been Marcused " | Michael Fields | Stephanie Savage | September8,2008 | 3.25 |
| 21.0 | 3.0 | " The Dark Night " | Janice Cooke | John Stephens | September15,2008 | 3.73 |
| 22.0 | 4.0 | " The Ex Files " | Jim McKay | Robert Hull | September22,2008 | 3.33 |
| 23.0 | 5.0 | " The Serena Also Rises " | Patrick Norris | Jessica Queller | September29,2008 | 3.40 |
| 24.0 | 6.0 | "New Haven Can Wait" | Norman Buckley | Alexandra McNally & Joshua Safran | October13,2008 | 3.31 |
| 25.0 | 7.0 | "Chuck in Real Life" | Tony Wharmby | Lenn K. Rosenfeld | October20,2008 | 3.03 |
| 26.0 | 8.0 | "Pret-a-Poor-J" | Vondie Curtis-Hall | Amanda Lasher | October27,2008 | 3.05 |
| 27.0 | 9.0 | "There Might Be Blood" | Michael Fields | Etan Frankel & John Stephens | November3,2008 | 3.16 |
| 28.0 | 10.0 | "Bonfire of the Vanity" | David Von Ancken | Jessica Queller | November10,2008 | 2.88 |
| 29.0 | 11.0 | "The Magnificent Archibalds" | Jean de Segonzac | Joshua Safran | November17,2008 | 2.89 |
| 30.0 | 12.0 | "It's a Wonderful Lie" | Patrick Norris | Robert Hull | December1,2008 | 3.11 |
| 31.0 | 13.0 | "O Brother, Where Bart Thou?" | Joe Lazarov | Stephanie Savage | December8,2008 | 2.99 |
| 32.0 | 14.0 | "In the Realm of the Basses" | Tony Wharmby | John Stephens | January5,2009 | 2.96 |
| 33.0 | 15.0 | "Gone with the Will" | Tricia Brock | Amanda Lasher | January12,2009 | 2.85 |
| 34.0 | 16.0 | "You've Got Yale!" | Janice Cooke | Joshua Safran | January19,2009 | 2.22 |
| 35.0 | 17.0 | "Carnal Knowledge" | Elizabeth Allen | Alexandra McNally & Lenn K. Rosenfeld | February2,2009 | 2.31 |
| 36.0 | 18.0 | "The Age of Dissonance" | Norman Buckley | Jessica Queller | March16,2009 | 2.33 |
| 37.0 | 19.0 | "The Grandfather" | J. Miller Tobin | Robert Hull & Etan Frankel | March23,2009 | 2.25 |
| 38.0 | 20.0 | "Remains of the J" | Allison Liddi-Brown | Sarah Frank-Meltzer | March30,2009 | 2.45 |
| 39.0 | 21.0 | "Seder Anything" | John Stephens | Amanda Lasher | April20,2009 | 2.37 |
| 40.0 | 22.0 | "Southern Gentlemen Prefer Blondes" | Patrick Norris | Leila Gerstein | April27,2009 | 1.97 |
| 41.0 | 23.0 | "The Wrath of Con" | Janice Cooke | Sara Goodman | May4,2009 | 2.22 |
| 42.0 | 24.0 | " Valley Girls " | Mark Piznarski | Josh Schwartz & Stephanie Savage | May11,2009 | 2.30 |
Question:
How many people wrote the episode with 3.40 million U.S viewers?
Answer:
1.0