I think the answer would be C) a place where water heated by magma rises from the ocean floor because it is an opening on the Ocean floor that releases heated mineral - rich water.
The word minerals mean A formal definition of a mineral, as used by geologists would be: A naturally occurring inorganic solid that has a definite chemical composition, and an ordered internal structure. Geologists are able to identify minerals because they have characteristic physical properties.
The answer to your question is Yugoslavia. I just had this questions on my exam, and that was the answer.
C is the answer. Hope this helps.