I can say for certain that it's really probably not A. or D.
As for B. or C., I'd say C.
Answer:
Well water mollusks live underwater and land mollusks live on land
Explanation:
Hii this isn’t about answering your question, don’t press the links ppl give you in the comments they’re old men selling people into sex traffic by you pressing their link and them getting access to your IP address, anyways have a good day!!!:)
Evolutionary biologist hope this helps