Answer:
The correct options are: frightening creatures, heroic characters, and supernatural beings.
Step-by-step explanation:
Ancient Greek mythical literature depicts people's relations with Gods and Goddess, besides mythical creatures which may be half real and half not. Therefore, frightening creatures are very common in this kind of literature, whether because of the Gods which may transform into creatures for frightening people, or because some of them were made to create this feeling, like Hades and Medusa, for instance. Moreover, heroic characters are also very common as much as they represent the ideas of power, strength, and justice for the people to believe in and keep faith on their Gods and Goddesses. For last, supernatural beings are the ones very similar to these previous ideas presented for they are also mythical creatures, half real or not, or even animals transformed into human beings and vice versa. All these characteristics are still present in contemporary literature, whether it is a novel with heroic characters, whether it is a science fiction with a lot of frightening creatures and supernatural beings.