Choose the correct possessive form.
If there were more than one Secretary of State, and they both lived in this house, this would be the _____ house.
Secretary of State'sSecretaries' of StateSecretary of States'Secretaries of State's
If there were more than one Secretary of State, and they both lived in this house, this would be the _____ house.
Secretary of State'sSecretaries' of StateSecretary of States'Secretaries of State's