Joe: All vampire stories are based on an absurd set of premises.
Given Joe's Claims
1. All vampire stories are based on an absurd set of premises.
2. According to such stories, every victim of a vampire becomes a vampire.
3. And [according to such stories] vampires have existed since ancient times and are immortal,
4. Vampires would by now have almost completely eliminated their prey.
Evaluate Maria's Responses
1. no comment 2. Disagrees 3. no comment 4. no comment, possibly disagrees
The only one of Joe's points that Maria explicitly disagrees with is the idea that every victim of a vampire becomes a vampire. Maria's statements suggest that Maria disagrees with Joe's claim that vampires would by now have almost completely eliminated their prey, but that's not totally certain.
Goal
Expect the correct answer to addresses claim #2. It's not completely out of the question for a correct answer to address claim #4, but that seems less likely considering Maria's explicit disagreement with claim #2. Beware of answers which focus on other details about which Maria never expressed an opinion.