Which word best describes a character who may face danger bravely?

The word "heroic" is best suited to describe a character who may face danger bravely. This term implies courage, strength, and a willingness to confront perilous situations for the sake of others or a greater cause. A heroic character often exhibits attributes such as valor, selflessness, and determination, which are crucial in moments of crisis. Emphasizing bravery in the face of danger, the term aligns well with a character who acts nobly, often inspiring others through their actions.

In contrast, the other choices do not capture the essence of bravery in the same way. “Frivolous” suggests a lack of seriousness and a focus on trivial matters, while “cowardly” indicates fear and avoidance of danger. “Apathetic” refers to indifference and a lack of concern or emotion, which is contrary to the qualities of bravery required in dangerous situations. Thus, "heroic" is the most fitting descriptor for such a character.