Option O B. is an example of a claim of value. This is the case since claims of value are based on beliefs, taste, morality and other subjective aspects (emotions, feelings, etc.) that can be the reason behind the acceptance or rejection of something. In this sentence, it can be said that the claim is based on beliefs/moral values: if someone is not interested in a topic like “carbon emissions” is morally wrong (a bad person). This type of claims are hard to be argued against because not all people share the same values, beliefs, etc. and there may not be clear boundaries when establishing who is right and who is not, which is not the case when discussing objective issues.