Answer:
C. All elements now found on the earth either originated outside of our solar system, or have been synthesized by humans on Earth.
Explanation:
All elements now found on the earth either originated outside of our solar system, or have been synthesized by humans on Earth, because we can see in the given Periodic Table that some elements are result of BigBang fusion, cosmic ray fission, dying low-mass stars, merging neutron stars, exploding massive stars, exploding white stars, and other elements are obtained by synthesis.