Being "resolute" is characterized by:

The term "resolute" describes a person who is determined and unwavering in their decisions. This quality is associated with a strong, firm attitude toward goals or actions, embodying a sense of quickness in responding confidently to situations while also maintaining that firmness of purpose.

When considering the characteristics associated with being resolute, option "B" accurately captures this essence, as it implies both decisiveness and strength in one’s resolve. A resolute individual does not waver or hesitate but instead approaches tasks with a clear sense of direction and commitment.

The other choices describe qualities that contrast with being resolute. Indecision and hesitation suggest a lack of clarity or commitment, while carefulness and caution imply a preference for deliberation over decisive action. Complacency and relaxation indicate a lack of urgency or ambition, which stands in opposition to the determined nature implied by being resolute. Thus, the correct choice reflects the strong and determined quality of resolute behavior.