eager DB fetching of nested objects

Hi,

I would like to query an object from a DB and fetch all nested objects.

For example:

class ModelA(models.Model):

    ...

class ModelB(models.Model):

    a = models.ForeignKey(ModelA)

    ...

class ModelC(models.Model):

    b = models.ForeignKey(ModelB)

    ...

I want to query C by it's ID and to eagerly fetch A and B:

ModelC.objects.filter(pk=id).select_related('b')

But how to I do it when I want to already fetch also a when I call c.b?

Thank you

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