Final answer:
Henry II felt guilty about the murder of Thomas Becket, as he was indirectly responsible due to his conflict with the Archbishop over church rights which, after a statement made in frustration, led knights to commit the murder. The correct option is C.
Step-by-step explanation:
The question seems to be focusing on a common confusion between Henry II and Henry VIII, but addressing the correct monarch (Henry II) and the 'Murder at the Cathedral': King Henry II of England is believed to have felt guilty about Thomas Becket's murder at Canterbury Cathedral, although he was not directly responsible for the act itself. His conflict with Becket over the rights and privileges of the Church led to a breakdown in their relationship.
When Henry II supposedly said in frustration, “Will no one rid me of this turbulent priest?”, four knights took it upon themselves to kill Thomas Becket. Henry's reaction to the event suggests that he felt remorse and guilt, which resulted in him doing penance at Becket's tomb.
Hence, Option C is correct.