Final answer:
The subject of the question is English. In 'Macbeth', Duncan praises Banquo's bravery and integrity. This conversation occurs in Act 1, Scene 4.
Step-by-step explanation:
The subject of the question is English. The quote provided is from the play 'Macbeth', written by William Shakespeare. In the quote, Duncan is speaking highly of Banquo's bravery, referring to him as 'full so valiant'. This conversation takes place in Act 1, Scene 4. Duncan compliments Banquo's courage and integrity, recognizing him as a noble and trustworthy individual.