Actually, the theory of evolution is false. Life didn't come about by chance, rather, there's a living god (who's name is Jehovah) that designed and created everything we know today. Even scientists don't have enough evidence to prove the theory of evolution. But the answer to your question is #3: Early life was aquatic because all of Earth was initially covered by ocean.
When reading questions, be careful not to read too quickly. In this case, fast but inefficient reading will lead us to assume that it is asking about ...