Final answer:
Historically, King Henry II's words that led to Becket's death were not 'Kill that turbulent priest,' but implied a desire to be rid of him, and this was understood by his knights as a call to action. The Puritans aimed to remove Catholic elements from the Church of England.
Step-by-step explanation:
The question asks what King Henry said to his four knights about Thomas Becket that led them to take action. The correct answer to this specific question is not directly provided in the reference information here. However, the historical context implies the well-known phrase attributed to Henry II of England was "Will no one rid me of this turbulent priest?" which spurred the four knights to mistakenly interpret this as a royal command, leading to the murder of Thomas Becket, the Archbishop of Canterbury, in 1170.
In the broader context of English history and its church, the chief goal of the Puritans (Answer B) was to eliminate any traces of Catholicism from the Church of England. This objective was part of the tension and conflict within English religious and political history, including the actions of Henry VIII to establish the Church of England separate from the Catholic Church because the pope would not annul his marriage to Catherine of Aragon (Answer C).