Question: Beth Greene is a fictional character from the American horror drama television series "The Walking Dead", younger, half-sister of Maggie, the character has no counterpart in the comic book series on which the show is based, The Walking Dead is an ongoing black-and-white comic book series created by writer Robert Kirkman and which artist?
Sentence (from "The Walking Dead (comic book)"): It focuses on Rick Grimes, a deputy who is shot in the line of duty and awakens from a coma in the zombie apocalypse that placed Georgia under quarantine.
Relevant evidence: No