👉 In programming, a nullable variable is one that can hold either null or its value. This means it's not possible to assign a specific value to it without also assigning a default value, making it useful for handling null values in certain situations. For example: ```python class Person: def __init__(self): self.name = None # Creating an instance of the class person1 = Person() print(person1.name) # Output: None ``` In this case