Final answer:
The quote indicates that the king was consistent and diligent in performing his duties, embodying a stable and committed character.
Step-by-step explanation:
The quote "he did not hesitate nor waver in regard to his duty in the premises" suggests that the king was resolute and unwavering in fulfilling his responsibilities. This can be interpreted as an indication of the king's commitment to his duties and a reflection of a steadfast character. Given the various excerpts provided, which highlight positive qualities such as being hardy, wise, merciful, just, and honorable, option (a) 'The king was resolute and unwavering in fulfilling his responsibilities' seems to accurately reflect the king's character.