What OOP principles are being implemented in the following code $($select all that apply$)$:

from abc import ABC, abstractmethod

class Person$($ABC$)$:

hands $=2$

legs $=2$

@abstractmethod

def walk$()$:

pass

class Weiwei$($Person$)$:

def walk$()$:

print$(\text{'}$Walking is healthy'$)$

Group of answer choices

Instantiation

Abstraction

Inheritance

Polymorphism