Fossils are found mainly in rock.
a. intrusive igneous
b. extrusive igneous
c. sedimentary
d. metamorphic

The correct answer is C.) Sedimentary   My reason being is because almost all of which were originally deposited as sediments by moving / flowing water. Subsequent processes hardened them into sedimentary rock as overlying pressure squeezed the water out and the grains were cemented together.

I really hope that this helps you a lot .

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