To accurately determine which statement best describes the author's point of view on sea slugs, I would need to have access to the specific text or context from which this question is derived. However, based on the options you've provided, if the author expresses a sense of interest or anticipation regarding future discoveries, options A or D might be more fitting. If the emphasis is on ongoing changes in sea slugs, then B could be appropriate. If the author expresses skepticism about the idea that sea slugs are becoming more like their food, option C would be suitable.
Without the text, I cannot definitively say which is correct, but you can look for key phrases in the text that hint at the author's feelings towards sea slugs to help you decide.