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:
| Date | Result | Score | Opponent | Record | Attendance |
| --- | --- | --- | --- | --- | --- |
| Date | Result | Score | Opponent | Record | Attendance |
| September 12 | W | 13–10 | at Buffalo Bills | 1–0 | 72,389 |
| September 19 | W | 7–6 | Denver Broncos | 2–0 | 69,127 |
| September 26 | W | 15–12 | at Tennessee Titans | 3–0 | 68,932 |
| October 3 | L | 24–17 | Indianapolis Colts | 3–1 | 73,114 |
| October 10 | L | 34–21 | at San Diego Chargers | 3–2 | 52,101 |
| October 17 | W | 22–16 | Kansas City Chiefs | 4–2 | 66,413 |
| October 24 | W | 27–24 | at Indianapolis Colts | 5–2 | 56,615 |
| October 31 | L | 20–6 | at Houston Texans | 5–3 | 70,502 |
| November 14 | W | 23–17 OT | Detroit Lions | 6–3 | 66,431 |
| November 21 | L | 18–15 | Tennessee Titans | 6–4 | 69,703 |
| November 28 | L | 27–16 | at Minnesota Vikings | 6–5 | 64,004 |
| December 5 | L | 17–16 | Pittsburgh Steelers | 6–6 | 76,877 |
| December 12 | W | 22–3 | Chicago Bears | 7–6 | 67,572 |
| December 19 | W | 28–25 | at Green Bay Packers | 8–6 | 70,437 |
| December 26 | L | 21–0 | Houston Texans | 8–7 | 66,227 |
| January 2 | W | 13–6 | at Oakland Raiders | 9–7 | 41,112 |
Question:
What score has houston texans as the opponent?
Answer:
21–0