The correct answer is: D. ulterior, selfless.
The word “ulterior” means “having an ulterior motive; hidden or secret.” The word “selfless” means “concerned more with the needs and well-being of others than with one’s own.”
The sentence is saying that the person believed that everyone has an ulterior motive, even when they appear to be acting selflessly. This means that the person believed that everyone is always trying to get something out of others, even when they are doing something that appears to be altruistic.
The other options are not as good fits for the sentence. Option A, “personal, anti-social,” is not a good fit because it does not make sense to say that someone is driven by personal motives that are also anti-social. Option B, “personal, eternal,” is not a good fit because it does not make sense to say that someone is driven by personal motives that are also eternal. Option C, “altruistic, praiseworthy,” is not a good fit because it does not make sense to say that someone is driven by altruistic motives that are also praiseworthy. Option E, “sentimental, divine,” is not a good fit because it does not make sense to say that someone is driven by sentimental motives that are also divine.