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 (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 40.0 | 1.0 | "Glass Houses" | Tucker Gates | Molly Newman & David Marshall Grant | September28,2008 | 12.35 |
| 41.0 | 2.0 | "Book Burning" | Laura Innes | Sherri Cooper & Jennifer Levin | October5,2008 | 10.62 |
| 42.0 | 3.0 | "Tug of War" | Gloria Muzio | Josh Reims & Liz Tigelaar | October12,2008 | 10.09 |
| 43.0 | 4.0 | "Everything Must Go" | Michael Schultz | Nancy Won & Michael Foley | October19,2008 | 10.03 |
| 44.0 | 5.0 | "You Get What You Need" | Chad Lowe | David Marshall Grant & Cliff Olin | October26,2008 | 10.11 |
| 45.0 | 6.0 | "Bakersfield" | Gloria Muzio | Molly Newman & Peter Calloway | November2,2008 | 9.72 |
| 46.0 | 7.0 | "Do You Believe in Magic" | Michael Morris | Sherri Cooper-Landsman & Jennifer Levin | November9,2008 | 10.23 |
| 47.0 | 8.0 | "Going Once...Going Twice" | Karen Gaviola | Brian Studler & Beth Schwartz | November16,2008 | 10.07 |
| 48.0 | 9.0 | "Unfinished Business" | Michael Morris | Jason Wilborn & Nancy Won | November30,2008 | 10.19 |
| 49.0 | 10.0 | "Just a Sliver" | Michael Schultz | Molly Newman & David Marshall Grant | December7,2008 | 10.66 |
| 50.0 | 11.0 | "A Father Dreams" | Tom Amandes | Jennifer Levin & Michael Foley | January4,2009 | 9.16 |
| 51.0 | 12.0 | "Sibling Rivalry" | Jeff Melman | Liz Tigelaar & Josh Reims | January11,2009 | 9.07 |
| 52.0 | 13.0 | "It's Not Easy Being Green" | Laura Innes | Peter Calloway & Sherri Cooper | January18,2009 | 8.94 |
| 53.0 | 14.0 | "Owning It" | Bethany Rooney | Cliff Olin & David Marshall Grant | February8,2009 | 9.33 |
| 54.0 | 15.0 | "Lost & Found" | David Paymer | Michael Foley & Jennifer Levin | February15,2009 | 9.07 |
| 55.0 | 16.0 | "Troubled Waters, Part One" | Ken Olin | Monica Owusu-Breen & Sherri Cooper-Landsman | March1,2009 | 11.93 |
| 56.0 | 17.0 | "Troubled Waters, Part Two" | Ken Olin | David Marshall Grant & Molly Newman | March1,2009 | 11.93 |
| 57.0 | 18.0 | "Taking Sides" | Michael Morris | Michael Foley & Beth Schwartz | March8,2009 | 10.50 |
| 58.0 | 19.0 | "Spring Broken" | Richard Coad | Sherri Cooper-Landsman & Brian Studler | March15,2009 | 10.58 |
| 59.0 | 20.0 | "Missing" | Michael Schultz | Jason Wilborn & Nancy Won | March22,2009 | 10.81 |
| 60.0 | 21.0 | "S3X" | Laura Innes | Cliff Olin & David Marshall Grant | April19,2009 | 9.63 |
| 61.0 | 22.0 | "Julia" | Michael Morris | Molly Newman & Michael Foley | April26,2009 | 9.63 |
| 62.0 | 23.0 | "Let's Call The Whole Thing Off" | Laura Innes | Peter Calloway & Daniel Silk | May3,2009 | 9.22 |
Question:
Who wrote the episode whose director is Karen Gaviola?
Answer:
Brian Studler & Beth Schwartz