You are working with a research group and discover fossils of large animal. Upon close examination, it looks to be a mammal and an ancestor to the modern tiger, that you temporarily name “Species X’until you learn more about it. Using
your knowledge of the fossil record, you attempt to determine its relative age. You know that
evolved before
species X,
had already evolved and gone extinct before species X evolved, and
did not evolve
until after species X went extinct.
. A. Winged insects, Dinosaurs, Humans
B. Trilobites, Reptiles, Birds
C. Humans, Dinosaurs, Flowering plants
.
.
D. Dinosaurs, Invertebrates, Land plants

i believe the answer would be b. hope it : )

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.