Final answer:
The tension in 'How Arthur was Chosen King' related to 'How Theseus Lifted the Stone' lies in the revelation of a heroic character's noble lineage and destiny through a test, like Arthur pulling the sword from the stone.
Step-by-step explanation:
The story "How Arthur was Chosen King" draws on the tension created in "How Theseus Lifted the Stone" by depicting a hero, Arthur, who discovers his true lineage and destiny, similar to Theseus realizing his noble heritage. This type of narrative aligns with the classic structure of Greek hero stories where the protagonist, often of noble birth, faces a challenging task that reveals their destiny and positions them as an exemplary figure in society. Just like Theseus is tested and proves himself by lifting the stone, Arthur is tested by being the only one able to pull the sword from the stone, which confirms his rightful place as king.