initial data inlineAdmin

[carlos]

Hi, what is the best way fill all extra data inline, my code is

model.py
ModelA(models.Model):
   name = charfield(...)

CHOICE_OPTION = ((1,'One'),(2,'Two'),(3, 'Three')

ModelB(models.Model):
    fk(ModelA)
    option = integerfield(choice=CHOICE_OPTION)
    field1 = boolfield()
    field2 = boolfield()
    field3 = boolfield()


forms.py
class ModelBInlineAdminForm(forms.ModelForm):
    class Meta:
        model = ModelB
        fields = '__all__'

    def __init__(self, *args, **kwargs):
        super(ModelBInlineAdminForm, self).__init__(*args, **kwargs)
        self.initial = {
                'option': 1,
                'option': 2,
                'option': 3,
            }

admin.py
class InlineModelB(admin.TabularInline):
    form = ModelBInlineAdminForm
    model = ModelB
    extra = 3
    max_num = 3

class ModelAAdmin(admin.ModelAdmin):
    inlines = [InlineModelB]

but the result is not as expected, I repeat only the last option,
i need One, Two, Three

my inline look like this

option | field1 | field2 | field3
Three |   []      |  []       |  []
Three |   []      |  []       |  []
Three |   []      |  []       |  []

i use django 1.11.18, python3.6
What is the best way to do this, some link to read to guide me in the right
way

Cheers
-- 
att.
Carlos Rocha

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