What is a key difference between the contributions of Charles Darwin and Alfred Russel Wallace to the theory of evolution by natural selection?

• A. Darwin published his findings first, but Wallace independently concluded similar ideas about natural selection.
• B. Darwin and Wallace had completely opposing views on the role of the environment in evolution.
• C. Wallace focused solely on artificial selection, while Darwin introduced natural selection.
• D. Wallace's work was entirely based on genetic mutation theories.

Answer: (A)