Single/multi-choice problem: Which of the following solutions is better for the following goal:
To remove rust from drill bits

OPTIONS: [+] scrub off the rust using a scrub brush or cotton ball. Soak the drill bits in vinegar. Wipe off remaining rust. [+] scrub off the rust using a scrub brush or scouring pad. Soak the drill bits in vinegar. Wipe off any remaining rust.
scrub off the rust using a scrub brush or scouring pad. Soak the drill bits in vinegar. Wipe off any remaining rust.