Option 3

"I've been working on a chip that can help restrain villains." Mei proudly stated.

"what do you mean?" Deku asked, confused.

"Basically it can help reprogram their lives to be released back into society, it kinda hijacks their brain and then we can put in new commands and reshape their memories and information to make them normal humans."

"interesting, have you tried this out?"

"no not yet.... here wanna look at the chip?"

"sure?"

she hands him a chip, it's around 1 square inch in size.

"wouldn't people see the chip?"

"Glad you asked!!! so once the chip is installed, it dissolves inside the skin, and no EMP will destroy the chip, nor will it be destroyed!"

with that information...