A. Immune system
It helps our bodies fight everything that comes in our path.
Your answer would be B. Hope this helped :)<span />
Specialized structures for reproduction: One example is a fruiting body. Just like a fruit is involved in the reproduction of a fruiting plant, a fruiting body is involved in the reproduction of a fungus. A mushroom is a fruiting body, which is the part of the fungus that produces spores (Figure below
