Given the fact "ink is used for hiding from predators by octopuses", what is the answer to the question or completion "Which is the most accurate statement?"

OPT: 1. octopuses avoid sharks by blinding them with a dark substance; 2. octopuses avoid scorpions using ink; 3. octopuses avoid sharks using powerful claws; 4. octopuses avoid scorpions by eating them;
1.