Final answer:
King Duncan's statement about the Thane of Cawdor indicates his judgement of people and his ability to assess their character and trustworthiness.
Step-by-step explanation:
King Duncan's statement about the Thane of Cawdor being a gentleman on whom he built an absolute trust indicates his judgement of people. It suggests that King Duncan had a positive opinion of the Thane of Cawdor and believed him to be trustworthy and deserving of his trust. This shows that King Duncan had the ability to assess people's character and make judgements about their trustworthiness.