Plz help look at the pic Below and tell me which one should i pick

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

The structure that houses the cells genetic information.