Which sitcom, created and written by John Sullivan, follows the schemes of market trader Derek Trotter and his younger brother in south London?

• A Open All Hours
• B Porridge
• C Only Fools and Horses ✓
• D Steptoe and Son

Only Fools and Horses ran from 1981 to 2003; its 1996 Christmas special was watched by 24.3 million viewers, a record for a sitcom episode.