The fibrous skeleton of the heart functions to
a) effectively link all parts of the heart together
b) all of these maintain the normal shape of the heart
c) give cardiac contractile cells something to pull against

c) give cardiac contractile cells something to pull against

Explanation:

Because muscle need a point of attachment and it's possible in skeleton bones/soft bones at point called tendon

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a