Read the following premise and pick the correct choice. Then, respond with which of the choices is correct.
Premise: Marine life diminished.

Choice 1: Boats sailed through the ocean.
Choice 2: Oil spilled into the ocean.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. Oil spills can significantly harm marine life. Boats, while they can disturb marine life, do not directly cause the marine life to