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) |
| --- | --- | --- | --- | --- | --- | --- |
| 13.0 | 1.0 | "Gilted Lily" | Stephen Hopkins | David Maples | April19,2009 | 5.11 |
| 14.0 | 2.0 | "In My Humboldt Opinion" | Dan Lerner | David Maples | April26,2009 | 3.97 |
| 15.0 | 3.0 | "A Stand-Up Triple" | Sam Weisman | Michael Angeli | May3,2009 | 3.67 |
| 16.0 | 4.0 | "Rubble With A Cause" | Michael Watkins | Alexander Cary | May10,2009 | 3.60 |
| 17.0 | 5.0 | "Aguna Matatala" | Leslie Libman | David Slack | May17,2009 | 3.95 |
| 18.0 | 6.0 | "One Night Stan" | Dan Lerner | John Mankiewicz | May31,2009 | 4.04 |
| 19.0 | 7.0 | "Duplicate Bridge" | Bryan Spicer | Lynne E. Litt | June7,2009 | 3.73 |
| 20.0 | 8.0 | "A Frond in Need" | Ernest Dickerson | Brynn Malone | June14,2009 | 4.27 |
| 21.0 | 9.0 | "Who's Bugging Mary?" | Bethany Rooney | Jessica Butler | June21,2009 | 3.72 |
| 22.0 | 10.0 | "Miles to Go" | Sam Weisman | David Graziano | June28,2009 | N/A |
| 23.0 | 11.0 | "Jailbait" | Michael Watkins | Lynne E. Litt & Alexander Cary | July12,2009 | 3.91 |
| 24.0 | 12.0 | "Training Video" | Dan Lerner | Brynn Malone | July19,2009 | 3.92 |
| 25.0 | 13.0 | "Let's Get it Ahn" | Felix Alcala | David Maples | July26,2009 | 4.16 |
| 26.0 | 14.0 | "Once a Ponzi Time" | Dan Lerner | Alexander Cary & John Mankiewicz | August2,2009 | 3.88 |
Question:
What is the title when u.s. viewers (millions) is 3.97?
Answer:
"In My Humboldt Opinion"