Since there is no survival value in an animal's having an organ that is able to function when all its other organs ha...

This question confused me even though I was able to understand why D was the answer. At first, my guess was E. That it is always wrong not to tell the truth. However, this is a question where there is a conclusion based on a "general principle". Will there be questions like this in different scenarios on the lsat? I guess Im trying to ask, is the conclusion always what is based on the "general principle"?