How is realistic art different from fantasy art?

Fantastic art is a broad and loosely defined art genre.[1] It is not restricted to a specific school of artists, geographical location or historical period. It can be characterised by subject matter – which portrays non-realistic, mystical, mythical or folkloric subjects or events – and style, which is representational and naturalistic, rather than abstract – or in the case of magazine illustrations and similar, in the style of graphic novel art such as manga.

i think the answer could be either a or b because both are part of the post production part. hopefully this you a little.