Correct Answer & Explanation
Option A
• 'Guile' refers to sly, crafty, or cunning intelligence used to deceive others.
• Synonyms: Cunning, deceit, duplicity, chicanery.
• 'Sincerity', 'Honesty', and 'Naivety' are antonyms.
• Therefore, option A ('Cunning') is the correct answer.