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 | Venue | Opponents | Score | Competition |
| --- | --- | --- | --- | --- |
| December 4, 2005 | KLFA Stadium, Cheras | Sabah | 2-2 | PL Group B |
| December 11, 2005 | National Stadium, Bukit Jalil | Shahzan Muda-Kuantan Port | 5-1 | PL Group B |
| December 18, 2005 | KLFA Stadium, Cheras | TNB Kelantan | 1-0 | PL Group B |
| December 21, 2005 | Selayang Municipal Council Stadium | Police | 1-3 | PL Group B |
| January 1, 2006 | J-Corp Stadium, Pasir Gudang | Johor FC | 2-3 | PL Group B |
| January 8, 2006 | KLFA Stadium, Cheras | PKNS FC | 1-4 | PL Group B |
| January 15, 2006 | Hang Jebat Stadium | Malacca | 1-2 | PL Group B |
| January 22, 2006 | Likas Stadium, Kota Kinabalu | Sabah | 0-0 | PL Group B |
| February 5, 2006 | KLFA Stadium, Cheras | Shahzan Muda-Kuantan Port | 4-0 | PL Group B |
| February 8, 2006 | Perak Stadium, Ipoh | Perak | 0-3 | FA Cup Rd 1 |
| February 12, 2006 | Lada Stadium, Langkawi | TNB Kelantan | 2-1 | PL Group B |
| March 1, 2006 | KLFA Stadium, Cheras | Perak | 1-0 (Agg:1-3) | FA Cup Rd 1 |
| March 4, 2006 | KLFA Stadium, Cheras | Police | 2-1 | PL Group B |
| March 11, 2006 | KLFA Stadium, Cheras | Johor FC | 1-0 | PL Group B |
| March 18, 2006 | MPPJ Stadium, Petaling Jaya | PKNS FC | 0-1 | PL Group B |
| March 25, 2006 | KLFA Stadium, Cheras | Malacca | 2-4 | PL Group B |
| April 1, 2006 | Likas Stadium, Kota Kinabalu | Sabah | 1-3 | PL Group B |
| April 7, 2006 | KLFA Stadium, Cheras | Shahzan Muda-Kuantan Port | 1-0 | PL Group B |
| April 15, 2006 | Lada Stadium, Langkawi | TNB Kelantan | 0-1 | PL Group B |
| April 22, 2006 | KLFA Stadium, Cheras | Police | 0-3 | PL Group B |
| May 6, 2006 | KLFA Stadium, Cheras | Johor FC | 0-1 | PL Group B |
| May 10, 2006 | MPPJ Stadium, Petaling Jaya | PKNS FC | 0-0 | PL Group B |
| May 17, 2006 | KLFA Stadium, Cheras | Malacca | 2-1 | PL Group B |
Question:
Which Date has a Competition of pl group b, and Opponents of police, and a Venue of selayang municipal council stadium?
Answer:
December 21, 2005