Which 1976 BBC adaptation of a Robert Graves novel, starring Derek Jacobi as a stammering Roman emperor, was one of the most expensive television productions of its era?

• A The Forsyte Saga
• B Brideshead Revisited
• C I, Claudius ✓
• D Tinker Tailor Soldier Spy

I, Claudius featured an extraordinary cast including Siân Phillips, John Hurt, and Patrick Stewart; it won three BAFTAs and was a landmark in television drama.