In almost all forms of literary work, especially fiction, the character that represents the hero is almost always asked to rise about adversity in someway and fight for principles.
d)a character that imagines new possibilities and defies danger to bring an important gift to society
Explanation:
Most of the heroes that are shown in literary work are often regular folks that have the ability to re-imagine reality and how courage to face the adversitiies brought to them and help society to reach a better position. For example Heroes in literature often have to go through a problem that defeats them but their passion and responsability towards society makes them come through and conquer that obstacle.