Function behavior with a mutable default argument

What will be the output when the given code is executed? Possible answers:

• [10] [10, 10] [10, 10, 10]
• Error will occur
• [10] [10] [10]
• [10, 10, 10] [10, 10, 10] [10, 10, 10]
• [] [10] [10, 10]

def func(data=[]):
    data.append(10)
    return data
print(func())
print(func())
print(func())