Mercury contamination is a concern with every type of fish.

This is actually a true statement. However, there are relative amounts of mercury that are higher in some species and lower in others. Eating fish in moderate amounts and being cognizant of the relative amounts in different varieties (more in shark and tuna, while less in crab and lobster) can help a person make smarter choices.

idk but if i had to take an educated guess i’d say a c d