Which of the Following Factors Most Likely Contributed to the Extinction

Multiple Choice

Which of the following factors most likely contributed to the extinction of many Ediacaran life forms?

A) predation by new species, poisoning from high carbon dioxide levels, and loss of developmental flexibility
B) predation by new species, poisoning from high oxygen levels, and loss of habitat due to increased temperatures
C) predation by new species, faster movement by new species, and increased developmental flexibility by new species
D) loss of habitat due to increased temperatures, poisoning from high oxygen levels, and loss of developmental flexibility